The 4x DVD RW media packs can reliably be rewritten up to 1,000 times, are single sided discs and can store up to 4.7 GB of data and approximately 120 minutes of video. The 2x media is backward compatible with a firmware upgrade, which can be downloaded at www.pioneerelectronics.com hs. Consumers can transfer home movies from VHS or 8mm cassettes, back up computer hard drives and large files. With larger storage capacities on DVD media, users can store at least 6.5 times more than on a CD R RW. p