[pawel]

"Video allocation" error is usually not a problem at all for most SA players. Nero checks if files in the VIDEO_TS folder follow DVD standard. If not, Nero tries to correct info in *.ifo and *.bup files. When it fails, it displays error message you got.

I use Nero 7, but in 6 you should also have option to cancel the warning info and burn your DVD.

Except the above, you may have some file, i.e. temporally created by Windows, which cannot be in the VIDEO_TS folder - only: *.ifo, bup, vob.

You can burn any additional files but they need to be outside VIDEO_TS and AUDIO_TS folders.