Help with ISOs (3.90M33-3)

So I loaded my first ISO on to my 2 gig MS on my PSP Slim.. (Tekken DR) - It is 563 meg. It works fine except the background music just beeps and blips. Am I missing something?

What is the best way to compress/play/rip ISOs on the PSP Slim? I am trying to wade through the mountains of homebrew apps out there!

Use UMDGen v4 to compress ISO -> CSO.
http://rapidshare.com/files/66036319/UMDGen_v4.rar

Use UMDGen v4 to compress ISO -> CSO.
http://rapidshare.com/files/66036319/UMDGen_v4.rar

Nice!

Should I use .cso or .dax? Can 3.90M33-3 read both?

Use .CSO, you need some special .DaX loader for the other, but id stick with cso, I don't think anyone uses dax anymore.

Use .CSO, you need some special .DaX loader for the other, but id stick with cso, I don't think anyone uses dax anymore.

Cool.

Now instead of starting a new thread, should I upgrade to CFW 3.95-GEN instead of 3.90M33-3? Any reasons why or why not to?

I'd stay on M33.

I'd stay on M33.

Any ideas on the Tekken background music? Could it be the ISO is messed up or is it a known issue? Also, I noticed the Tekken ISO only went from 560 meg to 540 meg compressed while a Syphon Filter demo went from 400 meg to 200 meg. Is that common when using .ciso compression?

Also, I noticed when I formatted my new Memory Stick with 3.90m33-3, it created PSP\GAME, PSP\GAME150 and PSP\GAME\380 directories. What are the differences?

I found some apps that only run on FW 1.50... is there a way to run that on Slim 3.90m33-3?

THANKS FOR YOUR PATIENCE!

EDIT: ALSO, if I have old PSX ISOs, can I play them/compress them on 3.90m33-3?