I wrote jettyplay <
http://nethack4.org/projects/jettyplay/>, a ttyrec
player written in Java 7; among other things, it can convert a ttyrec to
an AVI (although I recommend setting it to render bold as color,
rendering it with the font can break sometimes depending on the fonts
installed on your system).
I recommend uing ZMBV encoding (it's one of the settings in the
convert-to-video dialog box), which produces much smaller files than
encoding uncompressed, and which the vast majority of video players can
handle.
One other possibility is to install a terminal that does ssh, then ssh
to a separate computer and get it to play back the ttyrec.
--
ais523