They are uncompressed AVI’s. The ones that are being a problem were shot on a Sony VX2000. Until now, I’ve been using AVI’s purchased from stock media sites or shot on a Canon XL1 in PP CS5.5.
Checking the problem again, I’m noticing that sometimes the other AVI’s (h.264, divx, uncompressed) come up pixelated as though damaged, though they play fine in Windows Media Player, and show no problems in PP CS3.
Beth