I'm using ffmpegx to covert my tv shows from Mpeg2 to Mpeg4 (h264) so I can watch them on my iPod. The video works fine, but the audio mp2 to mp3, produces a 0kb file and doesn't join the two files together. The log file produces this

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Users/rclowser/Desktop/Working/Stargate Atlantis - ''Travelers'' (Recorded Oct 26, 2007, SCIFI).mpg.ff.video.mp4':
Duration: 00:59:57.3, start: 0.000000, bitrate: 553 kb/s
Stream #0.0(und), 29.97 fps(r): Video: h264, yuv420p, 640x352
Input #1, mpeg, from '/Users/rclowser/Desktop/Working/Stargate Atlantis - ''Travelers'' (Recorded Oct 26, 2007, SCIFI).mpg':
Duration: 00:59:55.8, start: 0.980456, bitrate: 2848 kb/s
Stream #1.0[0x1c0]: Audio: mp2, 48000 Hz, stereo, 192 kb/s
Stream #1.1[0x1e0], 29.97 fps(r): Video: mpeg2video, yuv420p, 480x480, 3500 kb/s
Codec type mismatch for mapping #1.1 -> #0.0
Please help??