I have made a quite useful object for playback of multiple simultaneous audiostreams. At the moment it can be used with SD card and COG ram, but I plan to include HyperRam and possible other memory types in the future. I would have released the first version now if it wasn't for the fact that the SD drivers I have tried are buggy, limited and lacks the most important feature for this application, a non blocking DMA read mode. I did manage to get it going from a single SD card with two simultaneous audio streams at 44100 Hz stereo mode. But all tested drivers locked up and/or bugged out "randomly". Then I had to start a separate thread and waste a cog to make it non blockning. I think that a good bug free SD driver with DMA support is of utter most importance for many tasks. Parallax should get behind an effort at making an official gold standard SD driver. Besides serial, video, I2C, SPI, USB etc. I really think that this is one of the most important objects to get done (right) before the official P2 release. No shadow falls on all involved in making SD drivers for the P2, without them we would have nothing at all. I'm not bashing on anyone.