I also am looking for an IMV convertor. I bought 4 mp4 players from ebay which stated "Support AVI format or other format files converted to AVI format" However, the test file on the player is an IMV. The converter that came with the player is sunplus PMP transcoder which creates ASF files.. I tried Avi ,ASF, AMV, none are seen by the players. I think I got ripped as the auction stated it would play AVI. I have googled for IMV encoders or transcoders and can not find any.
This is the player:
NEW 2''TFT 2GB MP3 MP4 VIDEO & FM + MINI SD CARD SLOT.