Dvr is a tool to record movies on a computer equipped with a video4linux-compatible video capture card. it can record and compress data at up to 25 fps in real time, using recent codecs like divx, indeo 5, mpeg4, and others.

features include:
- support for writing data in segmented files (to avoid 2gb file size
limitations)
- support for recording audio in mp3 or pcm, with configurable frequency,
mono/stereo, etc.
- on-the-fly capture and compression (requires a fast processor)
- horizontal margin removal during capture (saves disk space and processor
resources when recording movies that have black top/bottom margins, such
as 16/9)
- detailed monitoring during recording (free space left, frames lost, cpu
usage, etc.)
- configurable record start time and duration
- a large number of configurable parameters (size, image depth, codec
attributes, tv parameters, etc.)
- session management (saving parameters on exit and reloading them on launch)
- simultaneous preview and capture
- fullscreen preview
- support for multi-processor machines
- session management
- a graphical user interface
website: http://dvr.sourceforge.net