The new 1X-4X DVD-R 8cm media packs are write once single-sided discs and can store up to 1.4GB of data and approximately 30 minutes of video. The DVD-R disc was developed for DVD-RW/- R drives, DVD-RW/-R camcorders, Sony DVD Handycams, and can be played back in most DVD players. Disc must be initialized before recording and finalized after completion of recording process.