[X4U] DVDs which fail verification

[B. Kuestner]

Failure means, that the original and bit do not match bit by bit.

For videos that might be okay: You will either not notice any  
problems at all or just have an occasional optical or audio glitch.

For data, of course, every bit can count.

Generally, if your burn results are bad enough that the error  
correction cannot compensate for them, you should probably find other  
media which better match with your burner. There are likely other  
problems lurking on the disc that are not showing at the moment,  
because the DVD's error correction makes up for them. But if aging of  
the disk or scratching adds more unreadable bits, then you have  
little room for the error correction to handle these problems.

Björn