Just an FYI. I'm assuming it is not just me since I'm seeing consistent behavior across multiple machines and drives. Haven't tried it under Vista 32-bit yet:
Burning .ISOs via the "Burn Image ..." option in Nero 7.5.7.0 and 7.5.9.0 under Vista x64 RTM seems to result in deterministic corruption (always in the same place for a given ISO source file).
These burns will pass Nero verification, but some of the files will be corrupt if you try and read them back via Explorer in Windows.
It doesn't affect all .ISOs.
Those it does affect are always affected.
Those same .ISOs burn correctly when I boot from XP SP2 32-bit on the same machine. Once burned they'll read fine under Vista x64, so the problem is definitely occuring during the burn.
If I bust the .ISOs and burn the contets as a regular data CD project everything is fine.