On Wed, 2010-10-13 at 12:05 -0400, Paul Cartwright wrote: > I normlly burn with speed=4. but Tangential question: Are you guys using media that supports such slow speeds? And, if you are not, and if you could previously burn slower, that might be down to burning software overriding the data that the disc says. I say this because I've seen, in at least in some DVD media, discs reporting that they support only a few speeds, none of which was 1x. Which, theoretically, would preclude reliably using them in standalone DVD video recorders, as a straight record TV to DVD is done at single speed. And, I'm sure, a similar situation will exist for CD media. It's common for the media to report that it can burn at a few specific speeds, and you have to hope that some of them match the speeds that your burner can run at. $ dvd+rw-mediainfo /dev/dvd INQUIRY: [HL-DT-ST][DVDRAM GSA-T20N ][WR02] GET [CURRENT] CONFIGURATION: Mounted Media: 10h, DVD-ROM Media ID: MCC 03RG20 Current Write Speed: 8.0x1385=11080KB/s Write Speed #0: 8.0x1385=11080KB/s Write Speed #1: 4.0x1385=5540KB/s Speed Descriptor#0: 02/2285887 R@xxxxxxxx=2292KB/s W@xxxxxxxx=11080KB/s Speed Descriptor#1: 02/2285887 R@xxxxxxxx=2292KB/s W@xxxxxxxx=5540KB/s The above example is from a Verbatim DVD-R disc. According to the disc, itself, it can *only* be written at 8x or 4x. I don't have any other writeable media to hand, at the moment, to test. While you may get away with forcing some media to burn at unsupported speeds, I can well imagine there being reliability problems. Just like photography, burning a disc needs the right balance of laser exposure power and exposure time. Some high speed media may be optimised for only burning at high speed. -- [tim@localhost ~]$ uname -r 2.6.27.25-78.2.56.fc9.i686 Don't send private replies to my address, the mailbox is ignored. I read messages from the public lists. -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
