"Double Layer DVD":http://www.cdrlabs.com/phpBB/viewtopic.php?p=105337#105337. Sony announces a double layer DVD player. Called the DRU-700A and DRU-700UL (external). You can store up to 8.5GB of data on a single disk. Wow!
Its truly a super drive and supports all the bizarre formats now around including They will also feature up to 8X DVD±R, 4X DVD±RW, 40X CD-R and 24X CD-RW recording. The cool thing is that these DL disks are compatible with most DVD players. ERP is just $230, so quite inexpensive given its at the top of the technology curve. Although you can now buy a super combo drive like the NEC-2500A for just$90.
Apparently these are OEMed from Lite-on (just as the original Sony drives were actually from Ricoh), so you should see drives from Lite-on, BenQ and Phillips soon.