RM is a multimedia file format used for streaming video and audio content over the internet. It is based on the RealMedia codec developed by RealNetworks. RM files offer low file sizes while maintaining acceptable video and audio quality, making them ideal for streaming applications.
WMV is a video format developed by Microsoft, optimized for Windows devices. It offers good video quality at relatively small file sizes. While WMV is widely supported on Windows systems, it’s less compatible with other platforms, making MP4 a more universally accepted choice for video sharing.