6600 wav file playback problem...

I found a serious problem with my 6600...I transfer some wav files to my 6600 and stored them in MMC...those wav files are used to be my ringing and sms alert tone... Now...most of the times...when sms receive...the sms alert won't finish and will be stopped suddenly... Currently this happen when I play back those wav files by using recorder too...when the file is playing...it will stop itself automatically in the middle of the length...all the wav files that I transfer to my phone has the same problem... What is going on?...anyone experienced this??...how to solve??...is the file's problem or the phone problem??... Please help...thanks... __________________ How long are the *.wav files? They could be to long. __________________ I transfer a few wav files only...2 of them have the length about 20 - 25 seconds....one of them has 51 seconds...no matter long or short...all have the same situation...why is this happen?? Mavi forum