LMS
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- Extension: lms
- Samples: http://samples.mplayerhq.hu/game-formats/segacd/ecco-lms/
LMS is a multimedia format used on the Sega CD game Ecco The Dolphin. It is a raw grayscale video plus audio format. Frames are grouped into larger blocks in the following format:
2048 bytes - unused? 8820 bytes - left channel PCM 1420 bytes - padding 2048 bytes - unused? 8820 bytes - right channel PCM 1420 bytes - padding 12x8192 bytes - twelve video frames
Video frames are stored in the console format (two 4-bit palette indices in one byte, 32 bytes per one 8x8 tile) except that tiles are arranged in a special order: first frame is divided into strips 4 tiles high and strips are filled column by column. Palette indices seem to correspond to grayscale shades, palettes do not seem to be stored anywhere.