Of all the mac  rm converters sold on the market currently,  ImTOO rm converter  for mac is  a better one, which supports most mainstream input formats and over fifty output ones, such as rm, avi, mpeg, wmv, mp4, flv, asf, mov, mkv, etc.

What' s more, you can adjust video and audio quality,  set  video codec, frame rate, channels, etc.   Besides,  preview and snapshot functions are  supported by mac rm converter  . 

Step-by-step guide shows how to convert rm videos on mac os x:

Step 1: Download and run the rm converter  for  mac.

Step 2: Click "Add" button to add rm files you want to convert, the chosen  rm videos will display in the frame below.

Step 3:  Set  the converted video parameters, such as trim the video, change  video codec, frame rate, channels

Step 4: Under "Profile" option, choose the video format you want to convert rm to, such as  Apple TV h264(*.mp4) .

Step 5: Under "Destination" option, choose the folder you want to store the converted files.

Step 6; Click  button to start rm video conversion on mac os x,  after a few minutes, you can enjoy the high-quality video freely.

Note: the conversion between rm and other video formats  on mac is nearly the same.