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I wasn't able to find any mention in the forum of getting this working; apologies if this is already known. It looks like it is in fact possible to use DXT1 compressed textures in swizzled mode. When reading from swizzled DXT1, the GE reads 32 bytes of data (presumably since 4bpp in DXT1 expands to ...

If you're targeting 3.xx firmware, you should be able to use sceUtilityLoadAvModule() to get at the audio/video decoders from user mode. I personally avoid ATRAC3, but here's how I set up for AVC decoding to work on both 1.50 (psplink) and 3.40 OE-A: int loadav_ok = 0; int32_t firmware_version = sce...

pspsnake wrote:Can you call functions such as sceIoDopen, sceIoDread, etc using the OE firmwares? When I try, I get odd bus errors during my code.

These functions are part of the kernel, so they don't need the vsh files. Did you remember to clear the SceDirent structure before calling sceIoDread()?