I'm taking responsibility for maintaining a collection of recordings from online meetings, and I'm at a loss to determine which encodings I should use for them. The videos are coming from GoToMeeting, so they emerge in g2m4 format (which is quite large on disk) and so first I transcode with g2mtranscoder from Citrix. This gets me partway there, since other transcoders can work with my files once they're in normal wmv format.
However, from there--what is a proper choice of audio/video codecs? My main goal is to minimize storage, and I'm willing to accept some artifacts from lossy codecs.
My first attempts were using VBR h264 and 32kb/s MP3 in an MP4 container, and this worked well to minimize storage. However, I found that these transcodings could not be indexed when played in VLC: clicking most the way through a 2h video, the audio indexed to the correct time, but the video just froze.
This happened with two separate videos so I thought maybe it was my choice in codecs or something. Is there a better choice?