Jaguar XF Audio bug revealed

Jaguar XF seems to have a bug- If you play a long video file- it plays fine if you turn the audio system off and on quickly it still plays . If you turn off longer than 2 minutes then it will not play any videos- ejecting the disk sometimes wont be possible till you change from memory stick. Reinserting the disk gived "DISK ERROR" immediatly- no attempt to read. In this fault state audio plays fine from the memory stick. To fix you must brose to a shorter video then turn off wait 2 minuites then turn on. Sometimes you may have to repeat this last proceedure 2 times.
Very odd as the long file does play - and is ok on a quick turn off and on - though not on a long over 2 minuites power off and on. Files were nothing special XVID 1.5MBs audio 128 K.
Not a problem as long as you are aware of it - and dont shut down playing a long file. I think over 1 hour may do it. 40 Minuites is fine.
Memory stick 32 GIG FAT32 formated