The best replacement for rmvb is avi.

The best alternatives to rmvb are rated as following:
★★★★★  avi
★★★★  mkv
★★★  rm
★★  avi better
★  mkv better

Your alternative for rmvb is not listed? Suggest!
Speaking about rmvb, one probably shouldn't forget about srt.

Other search terms related to rmvb and their ratings are:
★★★★★ srt
★★ kmplayer
You have in mind a companion for rmvb and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of rmvb in all years. Click on graph for more.
rmvb
avi
mkv