This bug is not really serious, just a minor inconvenience. Prior to RC4, I haven't been able to get auto compress to work and I have converted the videos to MPEG2 by hand. After I updated to RC4, MP started to automatically convert all the recordings to MPEG2, even though auto compress is not enabled. This bug is slightly irritating as every recording takes up twice the space, because the original recording is not removed. The converted recordings are named name of the showprocessfile.mpg.