From LXF Wiki
DVD is an abbreviation for Digital Versatile Disc. DVD looks very similar to CD technology, but is is actually a great improvement holding up to 25 times more data and being upto nine (9) times faster than current CD-rom technology. There are a number of DVD technologies that have all had relative successes and failures - DVD Video - DVD_ROM - WebDVD and DVD audio. DVD is often described as not being a Revolution so much as an Evolution.
This author looks forward to the day, when more computer magazines follow Linux Format and ditch CD-ROM magazines to reduce the cost of the DVD edition of the magazine. Finding the extra software is often described as a difficult task, but I don't actually ever recall the demand that the DVD be full, just that I'd rather have a single choice and it's take it or leave it.
DVDs have increasingly become Double-sided (year 2003), this can be described as good in the sense that more Software is available (more work for the CD/DVD software collectors), but bad in the sense that CD/DVD technology has been compromised to accomplish this procedure. It often means that the actual disk is thinner and is more likely to error in older CD/DVD readers.