LinuxQuestions.org - Need help converting a video to a different format.

I'm trying to edit a .ogv video in Avidemux, but alas! Avidemux can't handle the .ogv format. I want to convert this video to an uncompressed mpeg for editing, and I've tried avconv and ffmpeg, both of which fail with error messages.

Code:

cameron@Aspire-5920:~/Videos$ avconv -i out-13.ogv out-13.mpeg

p11-kit: couldn't load module: /usr/lib/x86_64-linux-gnu/pkcs11/p11-kit-trust.so: /usr/lib/x86_64-linux-gnu/pkcs11/p11-kit-trust.so: cannot open shared object file: No such file or directory

avconv version 0.8.10-6:0.8.10-0ubuntu0.13.10.1, Copyright (c) 2000-2013 the Libav developers

  built on Feb  6 2014 20:53:28 with gcc 4.8.1

[ogg @ 0xf32a20] max_analyze_duration reached

Input #0, ogg, from 'out-13.ogv':

  Duration: 00:01:28.60, start: 0.000000, bitrate: 2666 kb/s

    Stream #0.0: Data: skeleton

    Stream #0.1: Video: theora, yuv420p, 1024x624 [PAR 1:1 DAR 64:39], 15 fps, 15 tbr, 15 tbn, 15 tbc

[buffer @ 0xf33100] w:1024 h:624 pixfmt:yuv420p

[mpeg1video @ 0xf39840] MPEG1/2 does not support 15/1 fps

Output #0, mpeg, to 'out-13.mpeg':

    Stream #0.0: Video: mpeg1video, yuv420p, 1024x624 [PAR 1:1 DAR 64:39], q=2-31, 200 kb/s, 90k tbn, 15 tbc

Stream mapping:

  Stream #0:1 -> #0:0 (theora -> mpeg1video)

Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

cameron@Aspire-5920:~/Videos$ ffmpeg -i out-13.ogv out-13.mpeg

p11-kit: couldn't load module: /usr/lib/x86_64-linux-gnu/pkcs11/p11-kit-trust.so: /usr/lib/x86_64-linux-gnu/pkcs11/p11-kit-trust.so: cannot open shared object file: No such file or directory

ffmpeg version 0.8.10-6:0.8.10-0ubuntu0.13.10.1, Copyright (c) 2000-2013 the Libav developers

  built on Feb  6 2014 20:53:28 with gcc 4.8.1

*** THIS PROGRAM IS DEPRECATED ***

This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.

[ogg @ 0x104ba20] max_analyze_duration reached

Input #0, ogg, from 'out-13.ogv':

  Duration: 00:01:28.60, start: 0.000000, bitrate: 2666 kb/s

    Stream #0.0: Data: skeleton

    Stream #0.1: Video: theora, yuv420p, 1024x624 [PAR 1:1 DAR 64:39], 15 fps, 15 tbr, 15 tbn, 15 tbc

File 'out-13.mpeg' already exists. Overwrite ? [y/N] y

[buffer @ 0x1051660] w:1024 h:624 pixfmt:yuv420p

[mpeg1video @ 0x104f380] MPEG1/2 does not support 15/1 fps

Output #0, mpeg, to 'out-13.mpeg':

    Stream #0.0: Video: mpeg1video, yuv420p, 1024x624 [PAR 1:1 DAR 64:39], q=2-31, 200 kb/s, 90k tbn, 15 tbc

Stream mapping:

  Stream #0.1 -> #0.0

Error while opening encoder for output stream #0.0 - maybe incorrect parameters such as bit_rate, rate, width or height

cameron@Aspire-5920:~/Videos$

What am I doing wrong? I don't know what a stream or a bitrate is, and what to put, so I'm at a loss. I just want to convert my video to an uncompressed mpeg, leaving all quality intact.