Perhaps the most amazing thing about some DVDs is that they play at all, given the trouble that DVD makers go to copy protect them. This is what AnyDVD HD has to say about the Toy Story DVD (which comes with the Blu-ray):
Video DVD (or CD) label: TOYSTORY1
Media is CSS protected!
Media is locked to region(s): 2 4 5!
Video Standard: PAL
Found & removed structural copy protection!
Found & removed invalid cell pieces!
Found & removed bogus title set(s)!
Found & removed invalid VOBUs!
RCE protection not found.
UDF filesystem patched!
Autorun not found on Video DVD.
Found & removed 15 potential bad sector protections!
Intentionally corrupted file systems and titles. Lovely.