Best video format and properties for HTC Hero:
Container = .MP4
Encoder = h.264
Frame rate = 23.976(NTSC) or 29.97(PAL)?
Resolution = 480 x 320
Video bitrate = 500-1000 kbps
Audio encoder = AAC
Audio bitrate = 320 kbps
You can use
Aimersoft Media Converter to customize the output video format, quality and size.
Cheers!