The SD card must be formatted for FAT or FAT32 format, and only 8.3 style file names may be used. Each file must be written contiguously to the SD card, and for that reason, you must start with a freshly formatted card before writing files to it.
Every file on the SD card contains a 512 byte header, followed by RGB data.
File header, first 512 bytes. Many bytes are not currently used and should be set to zero. The remaining bytes are: INDEX NAME DESCRIPTION 0-1 signature always 0xCC 0x33 3 address if 0 defines EC as master, should be 1..N for slaves 11 format file format, currently must = 3 16 delayf fraction of a millisecond 17 delayi integer number of milliseconds These bytes define the output frame rate. For example, for 30 frames per second the time between frames would be 33.333 milliseconds. So delayi=33, delayf=84 (256*.333 = 84)
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