Cable quality suddenly becomes important

A while back I mentioned how I’d found Australian interconnect company, Kordz, to be a very good deal for HDMI cables. I first stumbled across Kordz in an article in Connected Home Solutions (for which I write), which was discussing cables. David Meyer from Kordz had been interviewed and was expressing concern about the quality of some of the HDMI cables on the market.

Naturally I reserved judgement. I could see the point that cheap cables may not carry the bandwidth to support full 1080p signals with multichannel audio, but I didn’t think that this would, in the end, be a real issue.

Well, yesterday I plugged a new Blu-ray player into my system. The signal was fed via a one metre Kordz cable, to a Kordz 5-way HDMI switchbox (the receiver I’m using doesn’t have HDMI switching), and thence via a 10 metre cable to a projector. Everything worked perfectly, even with a 1080p signal at 60 hertz.

Jaycar HDMI cable, left, and Kordz HDMI cableBut this afternoon I had to test the player with a same-brand high definition LCD TV, and it was more convenient to use a different HDMI cable to plug it in. I had a relatively inexpensive five metre one I had purchased a while back from Jaycar Electronics that I had used many times with 1080i signals, perfectly successfully. But when I connected the Blu-ray player to the screen and tried delivering a 1080/60p signal, the picture kept flashing bright white across the bottom, occasionally disappearing for an instant to be replaced by noise. The audio also dropped out.

So I switched the BD player to 1080i output, and everything was fine. Back to 1080p, and the problem was again apparent. I then swapped the cable for a three metre cable of the same make (the code numbers on the cable’s insulation were identical) and this worked fine at 1080/60p.

So there you have it: cable quality is very important with HDMI. With a cheap cable, even five metres is too long for the high bandwidth demanded by 1080p/60. The dot clock frequency for 1080/60p video is 148.5MHz, which gives an idea of the bandwidth required.

For the moment I’ll be sticking with Kordz cables.

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Panasonic goes HD in a big way

I went to Sydney today for the Panasonic’s 2006 product launch (at Panasonic’s expense). They whetted my appetite by an invitation to a small group briefing, after the main event, on Panasonic’s Blu-ray strategy (I think there were about half a dozen of us there). Unfortunately I had to bail before exploring all the issues I would have liked to, or I would have missed my flight back home.

There were three really, really exciting things at the launch, and I’ll get to these in a minute. First, on a more mundane level, Panasonic is releasing a new series of high resolution (ie. 720p or thereabouts) LCD and plasma TVs. It is also releasing a new, upgraded, version of its highly regarded PT-AE900 projector. The new one is called the PT-AX100 (I guess they ran out of numbers for the AE tag). Still 1,280 by 720 pixels, it mostly had detail changes. The case is no longer silver, so it looks less like a business projector. And the ANSI rating is up to 2,000. Most impressively, the RRP has fallen to $3,299. Available in October.

Now to the good stuff.

Panasonic Th-65PV600 true HD 65 inch plasma TVFirst, Panasonic is also launching next month two new DVD recorders. The DMR-EX75 and the DMR-EX85 will, respectively, have 160 and 250GB hard disk drives. What’s special is that these will also have integrated digital TV tuners, and HDMI output. I wish I could tell you more, but I was so interested in the other stuff that I didn’t notice this last detail about them until just now, as I was looking at the press release. I’ll get ahold of one next month to review. Prices: $879 and $1,099 respectively.

Panasonic is also launching next month a new plasma display. So? How about 65 inches and full 1080p resolution? The TH-65PV600 looked very nice at the launch with a Blu-ray demo disk being run. Contrast ratio is said to be 5,000:1. It apparently has a tuner built in, but seemingly only analogue which is a bit strange. Input signal standards via HDMI include 1080/50i, 1080/60i, 1080/50p and 1080/60p, but apparently not 1080/24p. That’s a problem, as I’ll get to in a moment. Oh, the price? $17,499. That might jolt Pioneer a little, as its new 50 inch 1080p plasma display is $14,999.

What else was there? Oh, that’s right. How about a full 1080p front projector? The PT-AE1000 is an LCD unit offering 1,920 by 1,080 pixels. They had this up and running, and unlike the Fujitsu high definition LCD projector, no screen door effect was evident, even poking my nose up to the screen. According to its spec sheet, this one will support the same input video standards as the 65 inch plasma, but adds 1080/24p. That’s good news, as I’ll also get to in a moment. Price is not stated yet, and the release date will be November. I’d be surprised if the selling price is over $10,000, but I’m trying to extract some kind of approximate price from Panasonic.

Finally, there was the DMP-BD10, Panasonic’s Blu-ray player, destined for release in October as well. I don’t think much of the styling, but who cares? It’s Blu-ray! True HD movies of your choice! Well, not really, for a while anyway. 20th Century Fox was at the launch in the form of Fox’s Roy Cannall, the Senior Vice President for Global Business and Technology. Several releases will being appearing in November. Can’t say I think too much of the titles chosen: initially Fantastic 4 and a few others. Soon after will see Kingdom of Heaven in a >3 hour director’s cut, on a dual layer (ie. 50GB) disc with 5.1 channel lossless audio. Also there will be Ice Age 2, with 24 bit lossless audio.

Panasonic DMP-BD10 Blu-ray disc playerThe DMP-BD10 will not initially support the DTS HD or Dolby Digital True HD audio standards, but a firmware upgrade is expected to be available fairly soon to provide that support. Price: $2,749.

But there could be a problem with all this. The Blu-ray demo stuff they had on (primarily clips from Kingdom of Heaven and Ice Age 2) was absolutely awe-inspiring, in its detail, depth, and colour discrimination, both through the 65 inch plasma and the HD LCD projector. But there was one major problem with the picture on both display devices: the pans were jerky. It took thirty seconds for the penny to drop with yours truly: the Blu-ray player was delivering the video as 1080/60p. But the films were shot at 24 frames per second. How to convert 24 frames per second to 60?

Let us say that the first six film frames are labelled A, B, C, D, E and F. This is how they are delivered at 60p: AAABBCCCDDEEEFF. That is, a frame is shown three times, the next frame twice, the third frame three times, the fourth twice, and so on. On a little glass tube TV, you would probably not, or barely, notice this. But blow the picture up to a 65 inch plasma, or even more so to a 120-ish inch projection screen, combine it with the incredible sharpness offered by 1080, and the jerkiness is bleeding obvious and most offputting.

That’s the weakness of the DMP-BD10. It offers all the usual output options, plus 1080/50p and 1080/60p, but not 1080/24p. I expect once it starts getting reviewed in the US it will attract adverse comment on this. With 24p output, there are no cadence problems.

But will that be a problem for us? It all depends on whether Australian Blu-ray movies are released in 60 or 50 hertz versions. That’s one question I didn’t get a chance to ask, having to catch a plane.

Incidentally, don’t expect to import US DVDs. We will be Region B, along with Africa and Europe. The Americas and Japan will be Region A. Asia, including Russia, will be Region C. Expect the region protection scheme to be fairly robust, at least for a while.

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DVD Forum denies that PAL DVDs must be flagged ‘interlaced’

I emailed the DVD Forum regarding the claim that it is a requirement of the DVD specification that PAL DVDs have their scan mode flagged as ‘interlaced’. However the DVD Forum denies that this is in fact a requirement. Here is their reply:

DVD-Video Specifications do not require flagging for interlaced or progressive. It might be required in MPEG specifications, but it is up to software producers to choose which mode is appropriate for their product.

That makes the whole flagging thing bit of a mystery. Why would virtually all film-sourced PAL DVDs be flagged ‘interlaced’, and why would two different reputable DVD authoring houses advise me that this was a requirement? Weird. I shall investigate further.

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Sony to release HDD DVD recorder with SD tuner

There was another interesting product at the Sony Experience expo: the Sony RDRHX760 DVD recorder. So what? This one has a built in standard definition digital TV tuner. About time!

Compared to the forthcoming Philips DVDR9000H it has some advantages and disadvantages. For the latter, mark down the (still more than adequate) 160GB versus the Philips’ 400GB, and the lack of a HDMI output.

Sony RDRHXD760 DVD recorder with SD tuner But in its favour, at $999 it will have an RRP of just half that of the Philips. In fact, that’s a pretty reasonable price, putting it at $100 more than Sony’s current 160GB DVD recorder, which has an analogue tuner.

I had bit of a fiddle with it and generally it is pretty easy to use. But not all is perfect. For one thing, when you record something it is transcoded to one of the fixed Sony quality settings (1, 1.5, 2, 2.5, 3, 4, 6 and 8 hours – I don’t recall the HQ+ hard disk drive high bit rate mode being there, so maybe, like Pioneer, Sony has dropped it. I can only imagine the millions of calls they get from people who have used this mode on hard disk recording, and then found they couldn’t copy it at high speed to a DVD-R). That means that quality advantages of having an inbuilt digital TV tuner, rather than having to sent it in via an analogue connection from an external tuner, are reduced somewhat. I do wish it had an ‘original bitrate’ mode, so that your recordings could be identical quality to what was broadcast.

There is also a ‘live pause’ capability. But this is horribly clunky. Once you invoke it, you can’t go back to live TV for something like a minute. There was talk of a buffer needing to be filled, but that doesn’t make much sense to me for no one else with a live pause option has this problem.

Still, this is Sony’s first bash at this and those issues are probably well worth living with simply because of the excellent price.

Due later this year.

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How HDMI can make your DVD picture quality worse!

This only applies to PAL DVDs. But beware, most DVD players will by default play most PAL DVDs with poor picture quality via HDMI or, for that matter, progressive scan component video connections. Read all about it in my new article, ‘HDMI hobbled by poor DVD specification‘.

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Samsung aims to be first on Australian market with Blu-ray player

Samsung BD-P1000 Blu-ray player Samsung has just announced that it will be releasing its first Blu-ray player, the BD-P1000, ‘early in Q4’ this year. That would suggest sometime in October. Might make a nice match with the Sony projector mentioned below.

Samsung says it has twin lasers in the same head so that it will also read CDs and the various DVD formats. It also says it will do 1080p output, and provide upscaling of DVDs to the same resolution.

No pricing info yet.

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New High Definition Projector from Sony

The forthcoming Sony VPL-VW50 projector (front) with the VPL-VW100 at rear I went to the Sony Experience expo yesterday in Sydney. Some interesting new stuff was shown. The new range of home theatre receivers are going to have nicely organised, and attractively designed, on screen menus instead of the current interminable lists of options. Plus they are going to decode the enhanced audio standards that will be on Blu-ray and HD DVD discs.

But of particular interest was the VPL-VW50 projector (pictured) which was sort of on display. ‘Sort of’ because the model that was there was actually made of wood, being a mere mockup. So why bother mentioning it? Two reasons. First, it is an SXRD projector (Sony’s version of LCoS) with true high definition resolution: 1,920 by 1,080 pixels. Second, its model number ends in 50. That’s important because that means it will be cheaper than the $AUS15,000 VPL-VW100. Sony could give no hint of the price, but did confirm to me that it will be positioned under the VW100. I wouldn’t be surprised to see it going for around $10,000, or maybe even a little less. That will make the competition sit up and take notice, and bring true HD front projection within the budget of many more people.

They also had a number of true HD LCD TVs, and an 1080 RPTV also based on SXRD technology. This last was notable for having by far the best viewing angle of any RPTV I’ve yet seen. Perhaps there is life in the technology yet.

I’ve previously reviewed the VPL-VW100 projector, but there’s something of a difference between having it on my 212cm screen, and in Sony’s demo room on a 250 inch (6.35 metre screen). Even though I sat only about four metres away from the screen, driven with a Blu-ray demo disc, the quality was at least as good as anything you see in a real cinema: super smooth and detailed. I love it.

Oh, there was maybe one more reason for mentioning the VPL-VW50 — apparently this was the first ever time it had been placed on any kind of public display anywhere in the world. So I guess this is a kind of a scoop. The product is due for release in October this year.

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Kordz, plus Panasonic

A few weeks ago I went looking for a ten metre HDMI cable so it would fit nicely with my bundle of analogue video cables. Until then I had been using a five metre cable that barely stretched from receiver to projector.

But there was a problem with my search. The only ten metre HDMI cable I could find in Canberra was a Belkin PureAV cable. The marked price? How about $500+!

Fortunately, a few weeks before I’d read about an Australian company in one of the magazines for which I write (Connected Home Solutions, a trade magazine not generally available in newsagencies). That company was Kordz, which specialises in HDMI cables (plus it has quite a range of quality analogue cables).

So I lodged an order with a company called HT Custom Cables for the cheaper version of the ten metre Kordz HDMI cable. Cost? $159! The silver ‘Diamond’ version costs over $200.

Panasonic's forthcoming 2.61 metre high definition plasma displayI can recommend both companies. Kordz is one of only a handful of cable companies that is officially licensed by HDMI Licensing LLC, which owns the technology. And the cable works perfectly. As it happens, Kordz offers passive HDMI cable lengths to 25 metres, and active ones (with in-line repeaters) to 40 metres. As for HT Custom Cables, it sent the following email on receipt of my order:

Some good news, we are out of stock of the Krystal 10m HDMI cable you ordered, new stock isn’t available from the supplier for 2-3 weeks.So we have given you a free upgrade to the silver plated Diamond cable, enjoy.

Now, that’s pretty good service. A couple of days later I had the cable. It works perfectly.

Incidentally, I was at the CEDIA Expo at the Gold Coast over the weekend (thanks to Panasonic for taking me there, as well as to the second match of the Bledisloe Cup). Panasonic was showing off several things, including its monster 103 inch (2.61 metre) 1080p plasma display. Pretty good display and bigger than lots of front projector screens. But how do you get it into a home? It also was demonstrating its new control features between an LCD TV and the DMR-E65 DVD recorder, which uses the HDMI connection to allow control of one device by another. I took a peek and the cables used were Kordz.

Is there any point in making sure that the HDMI cables you purchase are properly certified? Who knows? But it may be a while before problems with some substandard cables are disclosed. HDMI can carry video up to 1080p, which may well demand greater bandwidths than 1080i that all current HDMI cables can carry (depending on the frame rate used). Remember, the video is full decompressed digital, so if you double the picture resolution, you double the data demands on the cable. So be careful. A cheap cable may well work beautifully even for 1080i, but may not work for 1080p.

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Truly giving power to the users

Got a press release today (no link available that I can find) about something called Metamenus. It is a product of a new company (founded last year) called Metabeam Corporation, which seems to be the provider of, well, organisation. Sound boring? Well it shouldn’t. The aim of Metamenus is to give ‘users easier, versatile and more direct over their content’. The content in question is movies and the like on consumer media. The idea is to standardise content delivery, while removing some of the irritations of many of the currently haphazardly organised DVDs.

For example, with several new Blu-ray titles Metamenus has been employed to:

open by default with a 20-second orientation video, then immediately play the movie. Gone are the days of the endless series of trailers and needless menu loops. Now, during the introduction, users can click PLAY, ENTER or NEXT on their remote control anytime to jump directly to the movie.

I’m all for that! I have so many DVDs (the early Disney ones, for example) that won’t even allow you to change audio language with your remote control, demanding instead that you go back to the main menu, then the languages menu. The use of User Operation Prohibitions frequently seems senseless.

To further ease access to the contents of the disc:

During the movie, Metamenu users can click a single button to summon a sliding menu shade, which appears superimposed over the video and provides easy access to everything on the disc, including individual scenes, natural language settings, a video tutorial, and key map help system – all while keeping the high-definition movie running in the background.

Will all companies adopt a Metamenus-like approach? Of course not. But if there are enough titles out there using this system to enable Metamenus to get a bit of brand recognition from consumers, then there could be a bias in sales towards such discs. The only problem is that movie companies have monopolies over their particular titles, so teasing out any effect on sales will be very difficult.

Incidentally, some of the Blu-ray titles using Metamenus are Crash, Lord of War, The Punisher, Saw, and Terminator 2: Judgment Day, all distributed in the US by Lionsgate Films. Since its productions are distributed by companies such as Warner and Sony Home Entertainment in Australia, we may not see that here. What a pity.

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Going insane, and then relief

So I’m reviewing mid-priced ($AUS2,000 to $4,000) home theatre receivers at the moment. Most of them are equipped with HDMI switching. I’ve been using one of them for a couple of weeks, with a HDMI DVD player plugged in along with Sony’s new high definition personal video recorder. The display is an InFocus IN76 projector, a rather nice little unit.

It’s time to switch from the receiver I’ve been using to another one, from Brand A. (You’ll have to read the review in Sound and Image to find out the brand). I then spend a couple of hours trying to make it work. The HDMI doesn’t work at all in the audio and video departments. The analogue video is flaky as anything with ‘Video Convert’ switched on, and whenever I switch the on screen menu display mode from NTSC to PAL, the picture goes haywire with the projector thinking it’s still in NTSC format, and therefore losing lock.

So I whinge to Brand A and they agree to send a replacement, since the former one had obviously been carted all over the place from the wear and tear on the box. While I’m waiting, I wire up the next receiver in the queue, Brand B. Well, blow me down, but Brand B won’t do video at all! Neither analogue nor digital. Even the on screen display won’t work. And since the front panel display is totally uninformative during menu operations, I can’t even set up the audio side.

About this time doubt sets in. Brands A and B are highly reputable. They ought to work. Have I crapped something up in my system?

Still, I whinged to Brand B and they promised to send a new one out to replace the ‘broken’ one.

Meanwhile, the replacement from Brand A turns up, so I unwire Brand B, wire in Brand A (by this time I’m developing mighty muscles in my fingers from tightening speaker terminals). Blow me down again, it exhibits an identical set of problems to the first unit.

By now my confidence is totally shaken. The new Brand A unit is obviously new, with the foam wrapping clearly not having been touched since it left the factory. It’s almost unthinkable that this brand would screw up this badly. I hit the Web and the only forum references I could find to this model were that all was hunky dory, although there was an implication that others (who I couldn’t find) may have suffered from ‘glitches’.

So it was time to eliminate alternative sources of the problem. First, plug the DVD player via HDMI directly into the projector. The video worked fine. Okay, so I know the cable is working and the source is compatible with the display. So I decided to go for a total Brand A solution. I had to hand a Brand A source with HDMI output. I plugged this into the Brand A receiver. I also had to hand a Brand A projector with HDMI input. I plugged the receiver’s output into its input. Guess what? Still no HDMI picture or sound whatsoever. That exhausted possibilities for that day (or, rather, evening since by then it was about 11pm).

First thing the next morning the replacement Brand B receiver turned up. I looked at its carton from time to time over the next couple of hours, procrastinating, reluctant to find out for sure if I’d made a complete fool of myself in my complaints to Brands A and B. Then Brand C turned up as well. I was very tempted to go straight for that, but in the end decided to try the new Brand B receiver. That would be the real test. I was already starting to mentally compose apologetic emails to the suppliers.

Oh, what glorious relief! The new Brand B receiver worked perfectly. All video conversions worked as they should, HDMI video and audio worked as it should. I wasn’t insane. It was just an awful coincidence. Brand A is distributing a dreadful product of which it should be ashamed. Brand B had a spot of bad luck with having delivered a broken receiver. But with three bad receivers in a row, I had been starting to think that it was me or my setup that was the problem.

UPDATE (Tuesday, 15 August 2006, 12:14 pm): Guess what? Brand A is not entirely to blame. I switched to a SIM2 Grand Cinema C3X projector which had turned up for review (beautiful unit incidentally) and Brand A worked perfectly. There are some wobbles, clearly, with the InFocus IN76 projector. But Brand A is not entirely blame free either, because the other receivers worked fine with the InFocus.

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