In my experience, dual layer disc average read speeds read at a different data rate than single layer discs. Do DL write speeds differ too? jco -----Original Message----- From: Adam Maas [mailto:[EMAIL PROTECTED] Sent: Sunday, January 15, 2006 10:12 AM To: [email protected] Subject: Re: Suggestions for DVD Drive
David Mann wrote: > On Jan 15, 2006, at 7:55 PM, Shel Belinkoff wrote: > >> The spec says it's an 8x4x12x DVD. What do those numbers mean? > > > My guess: > Reads at 12x speed > Writes at 8x speed > Re-writes (using RW media) at 4x > > From what I've seen the speeds are normally shown in decreasing > order: eg 12x/8x/4x. > > BTW the "base" speed of DVD is higher than for CD: they physically > spin about 3 times as fast and transfer data 9 times as fast due to > the higher storage density. In other words a 12x DVD drive can spin > at about the speed of a 36x CD drive and transfer data at the speed > of a hypothetical 108x CD drive. > > I doubt we'll ever see anything faster than 16x DVD drives as they'd > probably destroy the discs. > > - Dave Speeds are standardized on writes/rewrites/reads/dual-layer -Adam
