A rec_part2 file extension is related to the Walker File Format used to record digital video in SD and HD resolution.
REC_PART2 file extension - Walker File Format
What is rec_part2 file? How to open rec_part2 files?
File type specification:
The rec_part2 file extension is associated with the Walker File Format, a video recording format used by smart TVs, set-top boxes, record boxes developed by Walker Technology Products.
The rec_part2 file stores third part of recorded video in device supported Walker File Format.
Video is encoded by Advanced Video Codec and encrypted to prevent playback in other multimedia players.