diff options
Diffstat (limited to 'DOCS/xml/en/cd-dvd.xml')
| -rw-r--r-- | DOCS/xml/en/cd-dvd.xml | 103 |
1 files changed, 0 insertions, 103 deletions
diff --git a/DOCS/xml/en/cd-dvd.xml b/DOCS/xml/en/cd-dvd.xml index 535f62fe08..fb198da5e3 100644 --- a/DOCS/xml/en/cd-dvd.xml +++ b/DOCS/xml/en/cd-dvd.xml @@ -3,109 +3,6 @@ <chapter id="cd-dvd"> <title>CD/DVD usage</title> -<sect1 id="drives"> -<title>CD/DVD drives</title> - -<para> -Modern CD-ROM drives can attain very high head speeds, yet some CD-ROM drives -are capable of running at reduced speeds. There are several reasons that might -make you consider changing the speed of a CD-ROM drive: -</para> - -<itemizedlist> -<listitem><para> - There have been reports of read errors at high speeds, especially - with badly pressed CD-ROMs. Reducing the speed can prevent data loss under - these circumstances. -</para></listitem> - -<listitem><para> - Many CD-ROM drives are annoyingly loud, a lower speed may reduce the noise. -</para></listitem> -</itemizedlist> - -<!-- ********** --> - -<sect2 id="drives_linux"> -<title>Linux</title> - -<para> -You can reduce the speed of IDE CD-ROM drives with <command>hdparm</command>, -<command>setcd</command> or <command>cdctl</command>. It works like this: -<screen>hdparm -E <replaceable>[speed]</replaceable> <replaceable>[cdrom device]</replaceable></screen> -<screen>setcd -x <replaceable>[speed]</replaceable> <replaceable>[cdrom device]</replaceable></screen> -<screen>cdctl -bS <replaceable>[speed]</replaceable></screen> -</para> - -<para> -If you are using SCSI emulation, you might have to apply the settings to the -real IDE device, not the emulated SCSI device. -</para> - -<para> -If you have root privileges the following command may also help: -<screen>echo file_readahead:2000000 > /proc/ide/<replaceable>[cdrom device]</replaceable>/settings</screen> -</para> - -<para> -This sets prefetched file reading to 2MB, which helps with scratched CD-ROMs. -If you set it to too high, the drive will continuously spin up and down, and -will dramatically decrease the performance. -It is recommended that you also tune your CD-ROM drive -with <command>hdparm</command>: -<screen>hdparm -d1 -a256 -u1 <replaceable>[cdrom device]</replaceable></screen> -</para> - -<para> -This enables DMA access, read-ahead, and IRQ unmasking (read the -<command>hdparm</command> man page for a detailed explanation). -</para> - -<para> -Please refer to -"<filename>/proc/ide/<replaceable>[cdrom device]</replaceable>/settings</filename>" -for fine-tuning your CD-ROM. -</para> - -<para> -You may tweak the speed of SCSI CD-ROM drives with -<command>sdparm</command>, you need version 1.03 or higher: -<screen>sdparm --command=speed=<replaceable>[speed in kB/s]</replaceable> <replaceable>[cdrom device]</replaceable></screen> -Speed must be specified in kilobytes per second, the drive will -round it as appropriate. Please refer to the sdparm man page for -details. -</para> - -<para> -There is also a dedicated tool that works for -<ulink url="http://das.ist.org/~georg/">Plextor SCSI drives</ulink>. -</para> -</sect2> - -<!-- ********** --> - -<sect2 id="drives_freebsd"> -<title>FreeBSD</title> - -<para>speed: -<screen> -cdcontrol [-f <replaceable>device</replaceable>] speed <replaceable>[speed]</replaceable> -</screen> -</para> - -<para>DMA: -<screen> -sysctl hw.ata.atapi_dma=1 -</screen> -</para> - -</sect2> - -</sect1> - - -<!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --> - <sect1 id="dvd"> <title>DVD playback</title> |