It is possible to save space by compressing the recovered videos on screenscraper. ARRM uses Handbrake as compression software.

To activate the compression of videos during their recovery (scrap) just check the box compress video . The compression parameters used will be those indicated in the Handbrake parameters field

By default the compression settings are: -Z “Gmail Small 10 Minutes 288p30” –crop 0: 0: 0: 0 -f av_mp4

You can use other parameters knowing that those by default can reduce the video by more than half. List of differents presets usable with Handbrake

You can also compress all videos in a system. Open the system, select the roms and click on the button Compress selected videos

Compressing the videos also makes them compatible with the OMX player on Retropie