Version: 0.11.20 (using KDE 3.3.0, SuSE) Compiler: gcc version 3.3.4 (pre 3.3.5 20040809) OS: Linux (i686) release 2.6.8-24.11-default I have a 52x CDROM and a 40x plextor. When I start an 'on the fly copy' the reading speed is much too slow, the write buffer is exhausted within seconds and burnproof is activated. It takes ages to complete the write. Even with a copy to disk it remains very slow. I tried an on-the-fly copy at 8x and even then the write buffer gets exhausted... The same hardware is able to copy CD's on-the-fly at 32x speed under windows. Why isn't it working under linux?
Created attachment 9652 [details] log of a cd copy attempt
dma enabled? plextor writer and a 2.6.8 kernel... well, probably the worst combination for CD writing on Linux.
I have the same problem, but with Sony writer, kernel 2.4 and KDE 3.3 on SuSE 8.2. It's very slow to copy CD with K3b, but normal reading is fine. I can make an image of CD with 'dd -if=/dev/cdrom -of=image.iso' and it's done with CDROM full speed.
Same problem here. Teac 48x burner. Reading using k3b is slow, as in super-slow. Changing the reading option from read 128-times to read once helps a bit, but it's still way too slow - 0.5 MB / sec or so. things like cp /dev/sr0 /somewhere/blah.iso work perfectly - about 15 MB / sec Mandrake 10.1, kernel 2.6.8.1, KDE 3.3, K3b 0.11.20
K3b is faster than dd here but I am using the cvs version which sets the read speed to maximum before reading so most likely this problem is solved already. :)
Could you please check if this bug still occurs with the recent version of k3b (0.12.17), please close if fixed.
This bug is still UNCONFIRMED, was filed for an old version of k3b (<0.12) and has not been replied to for 30 days. Closing this bug.