Sony RDR-GX7 매뉴얼

There are cases where a recorded DVD disc can not be played back on certain DVD players due to differences in disc type 

and recording format. Compatibility by disc type, recording format and type of player is indicated below. 

Players which can play back 

DVD-RW discs recorded as VR type.

Players which can read the recorded 

signal on a DVD-RAM disc.

Notes:
1. Although this information is based on format specifications for playback and recording formats, there may be cases when playback is not possible on actual equipment purchased. 
2. There may be cases where playback is not possible on DVD drives on personal computers or game equipment due to differences in drive type or recording format of the software.