简单翻译：sony重写了MS代码，以至于有些MS工作不正常。红的：不好/黄的：拖慢/绿的：正常 组棒都是绿的
在3.80下面重新格式化应该解决问题，或者试试其他的iso loader。希望3.81版会好点。

http://forums.maxconsole.net/showthread.php?t=96816


In 3.80, Sony have heavily "optimized" the fatmsmod.prx which is the memory stick driver, reducing the size by nearly 80kb.

However, whatever they did seems to have had 2 effects
1) Caused crappy read and write speeds for certain memory sticks
2) Totally broken Saved Data and Game menus for certain memory sticks

However, USB hasn't been affected as these drivers haven't changed.

A possible solution is to replace fatmsmod.prx with the decryped one from 3.71 - not easy as the exports will need to be changed to the new random ones in 3.80

Not working
Sony 4GB
Sandisk 4GB Gaming
Sandisk 1GB Gaming
Lexar 4GB (works on homebrew but not ISOs)
Sony 1GB

Slow but working
Sony 4GB
Sony 4GB
Sandisk unknown size
Sandisk 4GB Ultra II
Sandisk 4GB
Sandisk 4GB Gaming
Sandisk 4GB Ultra II
Sandisk 4GB (no slowdown with M33 driver)
Sandisk 4GB (no slowdown with M33 driver)
Sony 8GB
Sandisk 4GB Gaming
Sony 4GB (no slowdown with M33 driver)

Working
Sandisk 4GB
Sony 2GB
Sony 2GB MSX-M2GS
Sony 2GB HighSpeed (fake)
Sandisk 256MB
Sandisk 2GB
Sandisk 512MB
Sandisk 4GB Ultra II
Sony 8GB MSX-M8GS
Sony 1GB
Sony 2GB
Sandisk 2GB M2 (in an MS adapter)
Sony 1GB - "only one comment: I used this card as a Magic Memory Stick to write 3.71 M33-2 with DCv3 to my PSP slim. After that, I tried one ISO game, Silent Hill Origins. It was choppy. Then I installed 3.80 M33, then 3.80 M33-2. I reformatted my card with windows, as FAT32. Then with PSP, and 3.80 M33-2 formatted to FAT instead of FAT32. Now it's not choppy. Works fine."
Sony 4GB
Sony 1GB
Sandisk 2GB
Sony 4GB
Sandisk 4GB Gaming
Sandisk 2GB Gaming
Sandisk 4GB Gaming (formatted as FAT32)
Sandisk 4GB (formatted as FAT32)
Sony 1GB (fake)
Sandisk 512MB
Sony 2GB (fake)
Sandisk 4GB
Lexar 1GB Platinum II
Sony 4GB
Sony 8GB
Sony 32MB
Sandisk 4GB
Lexar 4GB
Sandisk 4GB
Sony 4GB (fake)
Sandisk 512MB
Sony 1GB
Sony 1GB
Sandisk 2GB Ultra II (reformatted under 3.80)
Sandisk 4GB Gaming (formatted as FAT32)

Weird occurence: I had someone test a 32MB stick that wasn't working in 3.80 M33-2 after trying all the usual fixes, it instantly worked fine in 3.80 official firmware.
He went back into 3.80 M33-2 and it continued to work.

OK, after collecting this info, looks like formatting it in the PSP under 3.80 usually fixes it. The firmware should automatically format 4GB+ sticks to FAT32, which also seems to solve the problem if done manually in Windows via USB.
Even then, some memory sticks report slowdown with certain ISOs, this can sometimes be fixed by using the M33 driver.

However this is unacceptable, 3.81 should be released with no more stupid POPS bug and a fixed memory stick driver
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[ 本帖最后由 sectionboy 于 2008-1-15 19:42 编辑 ]

引用:

原帖由 solduchamp 于 2008-1-17 22:39 发表

同问~！
我刚想入手的

这个是3.80m33刚出来时候的。现在都升到-4版了，大部分棒子问题都应该解决了，这个帖子沉了吧，以免误导。