no problems with vista here, the read error just looks like a disc error , it would help to see the log,(help->imgburn logs)
use verbatim or taiyo yuden discs and the errors should disappear
it could be unicode with the problem you are describing , support was added in 2.2.0.0 and we are now on 2.3.2.0
you should always use the newest version
good luck reading from your successful burn in say 6 months .
i would rather pay for verbatim and know the data IS readable in the future
smag og behag
LOL
please note that dvd decrypter is not supported by this forum , but by your examples above , disc 2 is clearly a copy and of course can fit onto a dvd-r.
imgburn still cant help you with what you want to do