PS3 preset produces video file that plays badly on a PS3

This has happend with several different input files of various different types, including .avi and .mkv. Since I installed transmageddon it has never produced a file that plays cleanly on my PS3. The symptoms are always the same.

No matter what type of input file I have tried, using the "Sony Playstation 3" preset will always choose an output format of MPEG TS/AC3/H264. The transcoding seems to proceed normally and produces a .ts file. When played on the PS3 the video is jerky with pauses from a fraction of a second to several seconds long. The audio is also jerky but less so than the video. If I try to play the same file on my linux system it will play cleanly with both VLC and Movie Player. The same PS3 setup will cleanly play .ts files that I have downloaded.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: transmageddon 0.16-1
ProcVersionSignature: Ubuntu 2.6.38-10.46-generic 2.6.38.7
Uname: Linux 2.6.38-10-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Sun Aug 14 08:41:58 2011
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_CA:en
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
SourcePackage: transmageddon
UpgradeStatus: Upgraded to natty on 2011-04-30 (105 days ago)