NAME
qscan - console tool for quality measurement of optical media
SYNOPSIS
qscan [-l] [-h]
qscan -d DEVICE [-S] [-i] [-m]
qscan -d DEVICE [-p] [-r] [-w] [-v]
qscan -d DEVICE [-f] [-s] [-t] [-v]
qscan -d DEVICE -t wt [-s #] [-W]
DESCRIPTION
qscan is the linux console tool for error correction measuring with
optical devices. The related plugin allows to use vendor specific
commands on your optical device. Currently supported vendors are Asus,
Benq, Liteon, NEC, Pioneer and Plextor. For detailed information look
at http://qpxtool.sourceforge.net/supported.html
DEVICE
can be an IDE, SCSI, SATA, USB or FireWire connected optical drive. Not
all SATA controller support all Plextor features.
Linux:
/dev/hdX: IDE device
/dev/scdX: Linux 2.4: SATA, SCSI, USB device, or IDE device via ide-
scsi emulation
/dev/srX: Linux 2.6: IDE device via new ATA layer, SCSI or USB device
OpenBSD/NetBSD:
/dev/rcdX
FreeBSD:
/dev/cd: SCSI device
/dev/acd: ATA device
MacOS X:
/dev/disk:
win32:
C:,D:,E:, ... X:,Y:,Z:
OPTIONS
-l, --scanbus
scan busses for all available optical devices
-h, --help
show help
-S, --speeds
detect available read and write speeds for selected -d DEVICE
and the relating media
-i, --info
show device info of selected -d DEVICE
-m, --media
show media info of selected -d DEVICE
-p, --plugins
list all available plugins
-f, --force-plugin PLUGIN [ ASUS | BENQ | BENQ_DVDROM |GENERIC |LITEON
|NEC |PIONEER |PLEXTOR ]
force usage of the selected plugin to use the vendor specific
commands for the slected device.
Default behaviour auto detection modus.
[ASUS] use Asus vendor specific commands
[BENQ] use Benq optical writer vendor specific
commands
[BENQ_DVDROM] use Benq optical reader vendor specific
commands
[GENERIC] use generic mmc commands
[LITEON] use Liteon vendor specific commands
[NEC] use NEC vendor specific commands
[PIONEER] use Pioneer vendor specific commands
[PLEXTOR] use Plextor vendor specific commands
-r #, --rspeed #
set read performance speed to selected value.
Use -S option before, if you are unsure which speeds are
supported
-s #, --speed #
set measurement speed to selected value.
Use -S option before, if you don’t know what speeds are
supported by your device.
Don’t use this with -r or -w option.
-t, --test [rt|wt|errc|ft|jb|ta]
select the q-check you want to be proceeded. Not all tests
are supported by all devices.
For detailed information about the terms read the project
page:
http://qpxtool.sourceforge.net/glossar.html
[rt] read transfer rate measurement
[wt] write transfer rate on blank media
[errc] errror correction - Cx-scan / PIE, PIF, POE,
POF
[ft] focus and tracking error measurement
[jb] jitter and beta measurement
[ta] time analyzer measurement
-w #, --wspeed #
set write speed to selected value.
Use -S option before, if you don’t know what write speeds are
supported by your device.
-v, --verbose
gives verbose output and debug information
-W, --write
perform real write instead simulation for write transfer rate
EXAMPLES
qscan -l
scan all buses for availabale optical devices
qscan -d /dev/sr2 -S
Show available speed steps of device /dev/sr2.
qscan -d /dev/sr2 -t errc -s 5
Proceed an error correction scan on device /dev/sr2 with 5x
speed.
qscan -d /dev/sr0 -t wt -s 12
Proceed a write performance test in simulation mode on device
/dev/sr0 (dummy mode) with 12x speed
please report man page improvements to T.Maguin@web.de