Il Thu, Mar 04, 2004 at 12:41:43PM +0100, Andy Polyakov ha scritto: > > It refuse to work at 4x (with 4x media of course) even using -force. > > dvd+rw-tools shows the same behaviour. > > Complement your report with actual output from growisofs, which would > support this.
It just said that current write speed was 2x1385KBps (or maybe 2.4, don't remember). > > > INQUIRY: [_NEC ][DVD_RW ND-1300A ][1.0A] > > GET [CURRENT] CONFIGURATION: > > Mounted Media: 1Bh, DVD+R > > GET [CURRENT] PERFORMANCE: > > Write Performance: 3.9x1385=5408KB/[EMAIL PROTECTED] -> 2295104] > ^^^ Point is that recording should have > proceeded at 4x and if it didn't actually, then something else was > wrong. E.g. DMA might have been off, or you might have suffered from > scheduling/buffering problems (see > http://lists.debian.org/cdwrite/2003/cdwrite-200312/msg00226.html for > example). No, DMA was on and I was burning big tar.bz2 files (about 1GB each). DVD drive and HD are on different channel and the partition is not frammented. Catting files to /dev/null show a tput of about 50MBps. > There also is a chance that this particular media brand is > poorly supported by firmware. Yes, the latter is a bit far reached > statement, firmware being simply lying about write speed, but there were > reports which can be interpreted in this way (see > http://lists.debian.org/cdwrite/2004/cdwrite-200403/msg00015.html for > example). A. That may be the case. I was using Verbatim media, I bought them because they are supported by NEC [1]. Now I'm burning at 4x using Magnex DVD-R media with growisofs without problems. cdrecord still refuse to work at 4x though. Guess that I'll stick to growisofs ;) [1] http://www.nec.it/documenti/informatica/download/1039_Medialist_ND-1300A.pdf thanks, Luca -- Home: http://kronoz.cjb.net "La mia teoria scientifica preferita e` quella secondo la quale gli anelli di Saturno sarebbero interamente composti dai bagagli andati persi nei viaggi aerei." -- Mark Russel -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
