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Basically, I want to take a DVD movie and rip it to an ISO file.
dd if=/dev/scd0 of=/home/user1/image.iso
557177+0 records in
557176+0 records out
285274112 bytes (285 MB) copied, 76.3168 s, 3.7 MB/s
For some reason is goes very slowly! I have also done a simple 'cat /dev/scd0 > image.iso' and it too is very slow. The DVDROM drive never spins up.
I can do this w/ DVD-Decrypter and WINE, but DVD Decrypter goes very slowly (1.7x-2.0x) too. I know it's not my hardware because this same machine booted into XP does this operation around 12-14x in DVD-Decrypter. Also, k3b is dog-slow writing an iso.
Any ideas why it's so slow? Thanks all!
Last edited by graysky (2009-04-10 15:56:57)
CPU-optimized Linux-ck packages @ Repo-ck • AUR packages • Zsh and other configs
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I popped in my GTA 4 DVD (windows game). I did the same dd command and it too was written very slowly... so it's not just DVD movies
UDMA seems to be enabled and I'm out of ideas...
$ sudo hdparm -i /dev/scd0
/dev/scd0:
Model=BENQ DVD DD DW1640 , FwRev=BSRB , SerialNo=9JC5U150C353364133SP
Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=unknown, BuffSize=0kB, MaxMultSect=0
(maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
IORDY=yes, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 *udma2
AdvancedPM=no
* signifies the current active mode
CPU-optimized Linux-ck packages @ Repo-ck • AUR packages • Zsh and other configs
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You might wanna experiment with the 'bs' argument (bytesize), it seems to speed up copy operations.
Got Leenucks? :: Arch: Power in simplicity :: Get Counted! Registered Linux User #392717 :: Blog thingy
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Or you may want to issue "hdparm -E some_number /dev/scd0" to make your drive spinup. Try issuing it right before you issue the dd command.
R00KIE
Tm90aGluZyB0byBzZWUgaGVyZSwgbW92ZSBhbG9uZy4K
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Could you paste the output of:
dmesg | grep ata
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