MP3 playback problem

[Alexannino]

I try all new bilds and noticed such thing what some mp3 files plays whith pause about 0.3sec or something. Where the problem? Maybe I do wrong settings somewhere? MP3 320kb/s, Bas 3, stereo width 150%, HDD spendown 5sec. directory cache - on.
P.S. iPod Video 30Gb. By the way, if I put 3.6 version, no such a problem! Im trying new builds because when connect to PC the file transfer speed much faster than on ver.3.6. Or maybe someone can give me a patch to put in ver.3.6 to faster disk access?