*** empty log message ***

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@522 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 45 insertions, 0 deletions

diff --git a/DOCS/CDROM b/DOCS/CDROM
new file mode 100644
index 0000000000..f45cb883b2
--- /dev/null
+++ b/DOCS/CDROM
@@ -0,0 +1,45 @@
+
+Tune up CDROM
+~~~~~~~~~~~~~
+
+Introduction
+~~~~~~~~~~~~
+>From Linux documentation:
+
+Some CDROM drives are capable of changing their head-speed. There are several
+reasons for changing the speed of a CDROM drive. Badly pressed CDROMs may
+benefit from less-than-maximum head rate. Modern CDROM drives can obtain very
+high head rates (up to 24-times is common).  It has been reported that these
+drives can make reading errors at these high speeds, reducing the speed can
+prevent data loss in these circumstances.  Finally, some of these drives can
+make an annoyingly loud noise, which a lower speed may reduce.
+
+Howto
+~~~~~
+The recommended way to do it is with a program called 'setcd' . It's kinda
+old, but won't be too hard to find on the Net.
+Use it with :
+	setcd -x <speed> <cdrom device>
+
+Also you can try :
+	echo current_speed:4 >/proc/ide/<cdrom device>/settings
+but you'll need root privileges. (It didn't work for me - Gabucino)
+
+I use following command too :
+	echo file_readahead:2000000 >/proc/ide/<cdrom device>/settings
+for 2MB prefetched reading from the file (it's useful for scratched CDROMs).
+
+It's recommended that you tuneup your CDROM drive also with hdparm:
+
+hdparm -d1 -a8 -u1 <cdrom device>
+to enable using DMA access, readahead, and IRQ unmasking.
+(if you don't understand these, *read the hdparm manpage*)
+
+Final words
+~~~~~~~~~~~
+Please refer to "/proc/ide/<cdrom device>/settings" for fine-tuning your CDROM.
+
+	Nick Kurshev & Gabucino
+	  <nickols_k@mail.ru>
+
+