Toshiba Corp. and NEC Corp announced their Blue-Ray DVD format. 12cm, 40 gig, re-recordable. The new Sony Blue-Ray DVD format (incompatable with Toshiba/NEC's of course) will hold 50 gig but will cost more to make.
Currently a single sided, single layered DVD will hold about 4.6 Gig.
Be nice to see companies just built physical formats and kept the actual data format seperate and upgradeable.
Like if the "DVD" format changed from MPEG-2 to MPEG-4 (or whatever) you could flash your DVD's bios and bang, it can play the new format.
You just need a Blue-Ray if the film is too big to fit on a regular DVD. Like you can put the data of X CD-Rs onto a DVD-R. It's the same data, the DVD-R just fits more. So the new Blue-Ray disc could fit the whole of Simpsons Season 1 on it instead of it being on 4 DVDs, or it could have four blue-rays of Simpsons Season 1 at stupidly high quality.
Eventually they're going to hit a limit like they did with CD. The limit where any higher quality video will be irrelevant too all but the true video nerds and they'll have no-where to go.
I've ranted about this before... sorry.