I'm trying to convert video files to play on my Walkman, but so far I haven't been able to find a Target Format in Replay Converter that works. According to Sony,

WALKMAN supports the use of .mp4 video files that are QVGA size (320x240) and conform to these profiles: MPEG4-Simple Profile, AVC Baseline Profile v1.2, v1.3.

Does this match any of the formats supported by RC? I've tried a few of the many mp4 flavours listed, but the trial-and-error approach hasn't worked out so far, and it's taking forever.