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Re: Force growisofs to use lower speed

T <mlist4suntong@yahoo.com> said:

> % nice -n -2 growisofs -speed=4 -dvd-compat -Z /tmp/d1.iso
> /dev/dvd: "Current Write Speed" is 8.2x1385KBps.
>    1605632/4506009600 ( 0.0%) @0.0x, remaining 280:32
> :-? the LUN appears to be stuck writing LBA=310h, retry in 70ms
> [...]
> 4491739136/4506009600 (99.7%) @5.8x, remaining 0:01
> builtin_dd: 2200208*2KB out @ average 5.4x1385KBps
> /dev/dvd: flushing cache
> /dev/dvd: closing track
> /dev/dvd: closing disc
> :-[ CLOSE SESSION failed with SK=2h/ASC=04h/ACQ=07h]: Resource temporarily
> I used "-speed=4", why it didn't work?
> Why the growisofs insists to use speed 8
> instead what it is told (speed 4)? 

You should read the man page of growisofs, I remember that the option speed=4
don't means 4X speed. Take a lool at mediainfo output, may be there is the
info about speed factor

$ dvd+rw-mediainfo /dev/dvd 
INQUIRY:                [PIONEER ][DVD-RW  DVR-110D][1.17]
 Mounted Media:         1Bh, DVD+R
 Media ID:              RITEK/R03
 Current Write Speed:   8.0x1385=11080KB/s
 Write Speed #0:        8.0x1385=11080KB/s
 Write Speed #1:        6.0x1385=8310KB/s
 Write Speed #2:        4.0x1385=5540KB/s
 Speed Descriptor#0:    00/2295103 R@8.0x1385=11080KB/s W@8.0x1385=11080KB/s
 Speed Descriptor#1:    00/2295103 R@6.0x1385=8310KB/s W@6.0x1385=8310KB/s
 Speed Descriptor#2:    00/2295103 R@4.0x1385=5540KB/s W@4.0x1385=5540KB/s


--ejg @sf

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