Why convert REC to MP4?
MP4 (H.264 video, AAC audio) plays on phones, tablets, smart TVs, and video editors without plugins, while .rec files work only on Topfield hardware or in VLC, and even then can fail due to the proprietary header.
How to convert REC to MP4
HandBrake FREE
Open HandBrake, click Open Source and select the .rec or a de-headered .mpg/.ts, choose an MP4 preset, set the output filename, and click Start Encode.
ffmpeg OPEN-SOURCE
Run ffmpeg -i input.rec -c copy output.mp4 for a direct remux; if the header causes errors, de-header first with rec2mpg or tfrec2ts, then re-encode with ffmpeg -i output.ts -c:v libx264 -c:a aac out.mp4.
VLC media player FREE
If VLC plays the .rec, go to Media > Convert/Save, add the file, choose an H.264+MP4 profile, set the output filename, and click Start.
About these formats
.REC
Topfield PVR Recording
A REC file is a TV recording saved by a Topfield personal video recorder. Try VLC first - it plays many of them directly. If VLC fails, strip the Topfield header with rec2mpg or tfrec2ts to…
Open .REC details →
.MP4
MPEG-4 Part 14 Video File
An MP4 file is a video container (MPEG-4 Part 14, standardized 2003) that holds video, audio, subtitles, and chapters in one file. It plays on every phone, computer, browser, and smart TV…
Open .MP4 details →Quality & what to watch
- De-headering with rec2mpg or tfrec2ts is usually required before HandBrake or ffmpeg can read the file reliably.
- Converting from MPEG-2 to H.264/AAC involves re-encoding and reduces file size; quality is controlled by the encoder's CRF or RF slider.
- CCTV
.recfiles are a different format and may not work with these tools; use the device manufacturer's export function instead.
Frequently asked questions
Do I always need to strip the header first?
.rec, HandBrake may read it directly without de-headering.
