风鱼（4.8版）播放视频死机

烧录卡是TT，视频后来又用TT官网下樱花的软件播放也是死机，用风鱼4.8版播放死机时上屏黑屏，下屏显示如下：
AppName FishShell Ver 2.00 By carpfish
Apr 8 2009 23:13:31 GMT+8:00
ARM RVCT4.0[Build 471]
http://www.fishome.org
_current pc=ox020560e4         sp=ox02803e88
FreeMem=3483648 byte
  est for NULL ptv [NULLSTR]
Expana MemMgr array   [Temp] 0-＞32
Clear system cache
DLDI:active interface=ox0207c 260. ID=TT
=0, Name=TT CARD IO Library
DLDI driver stack check.
D Stack=1 Pos:6, Used:968,Total:12392
D Stack=2 Pos:6, Used:968,Total:12392
D Stack=3 Pos:6, Used:968,Total:12392
HBR boot sector=243 RD=739 RE=512 REsize=3
2
SPC=32 FD=771 FLC=62842
Detect FAT16
Shell_FAT_fopen_Data=/MOONSHL2/LOGBUF.TXT
＜Libdpg.cpp.41 clibdgp:#14604:Horizontal
sizes other than 256 pixels became unsupp
o rted.
         Application halted!!
Please refer[/moonshl2/logbuf.txt]

我在想是不是可用空间留太少（只留了三十几兆），还是磁盘碎片该整理了
如果不格式化，有没有什么别的办法？