I have problem play music with Amarok on my openSUSE 11 running an software RAID5 file system.
Must confess that I find it strange that it is possible to run a HD movie in Mplayer with no distortion and even listen to my MP3 music whit jampal whit no problem.

Copying any mp3 file from one place to another happens within seconds.

But Playing a mp3 music file in Amarok is distorted. It sounds as if the data is not read as fast as needed. This is the case if the mp3 music exists on a raid5 partition but not if the file is put in a partition that is not a part of the raid array.

Configuration:

Kernel: Linux 2.6.25.18-0.2-pae i686
GUI: 4.0.4 (KDE 4.0.4 >= 20080505) "release 33.3"
AMAROK: 1.4.10-100.pm.1-i586 from http://packman.iu.bremen.de/suse/11.0

CPU
Intel(R) Pentium(R) 4 CPU 3.00GHz 
3 GB in memory

Graffa
GeForce 7600 GS

4 SATA hard drivers
/dev/sda: Maxtor 6B300S0: 300 GB
/dev/sdb: WDC WD7501AALS-00J7B0: 750 GB
/dev/sdc: WDC WD7500AAKS-00RBA0: 750 GB
/dev/sdd: ST3750330AS: 750 GB

sda: is holding one windows system and one openSUSE10.3 system and all systems swap file.

sdb, sdc and sdd is all partitioned in 4 primary partitions
sdx1: 98GB
sdx2: 1GB
sdx3 500GB
sdx4: 98 GB

sdb4, sdc4 and sdd4 is building the md0 raid5 system holding the primary openSUSE11 system
sdb2 is holding the boot partition.

sdb3, sdc3 and sdd3 is building md1 holding all data ( and my music)

sdc2 and sdd2 is not used but will hold the boot partition of the new openSUSE11.1 system when it will be installed on md3

sdb1, sdc1 and sdd1 is partitioned in the same size but have not yet formed the md3 raid.
sdc1 is holding a “stable” openSUSE11 system for security reasons.

Putting 4 GB music on the sdc1 drive and testing playing some MP3's from that single partition system or from the system running on md0 is not distorted. But music stored on md0 or as planned stored om md1 will bi distorted as I play it. This regardless if the Yauap or the Xine sound system are used.

Could some one advise?

This probably has nothing to do with your RAID system. Make sure that you are using the xine engine in Amarok. SUSE uses a different engine by default that is known to be very buggy.

Sorry but as I stated in my problem description have I tested the XINE driver as well but no difference.