What Are HandBrake Supported Input Output Formats? HandBrake Supported Formats: HandBrake Supported Input Output Subtitle Formats HandBrake just isn't strange to many. It's a good helper to convert videos at no cost on multi-platform. Though the formats held by HandBrake are limited. Prior to using HandBrake to encode videos, you have to know if the source files is usually supported and transformed into target video formats. So, this post will answer one of the most pointed out question of what exactly are HandBrake supported input output formats. HandBrake Supported Formats HandBrake supported input sources: common multimedia formats (MKV, AVI, MP4, TS, M2TS), BluRay, unencrypted DVD-like source (DVD disc, ISO image file and DVD folder) (Tips: If you need to rip copy protected DVDs to digital files, you need one more program called VLC to assist, or use a quality HandBrake alternative for help.)