FLV, VOB and 3GP: Opening Old Video in 2026
Every external drive has a folder of video that no longer plays: Flash downloads, ripped DVDs, clips from a phone with a physical keyboard. Almost all of it is recoverable — here is what each format is and what to turn it into.
FLV to MP4 converter
Move Flash-era video into a container that modern players accept — locally, no upload.
FLV — usually a rewrap, not a rescue
Flash is gone, but the container outlived the plugin. Later FLV files hold ordinary H.264 video and AAC audio, so converting to MP4 mostly means changing the wrapper. Quality survives almost intact. Older FLVs using the Sorenson or VP6 codecs need a genuine re-encode and will look exactly as soft as they did in 2007.
VOB — a DVD in pieces
A ripped DVD is a VIDEO_TS folder of VOB files capped at about 1 GB each, holding MPEG-2 video. The tiny ones at the start are menus and copyright screens; the feature is in the consecutive large files.
Convert those to MP4 and join them in numerical order. If the footage was shot on video rather than film, deinterlace it — otherwise fast motion shows comb-shaped tearing on any modern screen.
Interlacing — the DVD-era tell
Footage shot on video rather than film is interlaced: each frame is two half-frames captured a fraction of a second apart. On a modern progressive screen that shows as comb-shaped tearing along anything that moves. Deinterlace during conversion and the result looks normal; skip it and every copy you make from then on carries the combing.
3GP — small on purpose
Old phone clips are often 176x144 or 320x240 because that was the network budget. Convert to MP4 for compatibility and leave the resolution alone. Upscaling does not add detail, it just enlarges the blocks — a small sharp video looks better than a large soft one.
Do it offline
These archives are personal: family footage, old projects, recordings of people who are no longer around. Morphix runs the whole decode and re-encode inside the browser tab, so nothing is uploaded to a service that may not exist next year either.
FAQ
Why will nothing play my FLV files anymore?
FLV was the Flash video container, and Flash was removed from every browser at the end of 2020. The H.264 video inside most later FLV files is perfectly fine — it just needs moving into an MP4 or MKV container that modern players accept.
What is a VOB file on a DVD?
VOB is the MPEG-2 program stream used on video DVDs, split into roughly 1 GB chunks in a VIDEO_TS folder. Convert each VOB and join them, or convert the largest ones — the small leading files are usually menus and warnings.
Do I need to keep the DVD menus?
Almost never. The small VOB files at the start of a VIDEO_TS folder are menus, trailers and copyright screens; the feature is in the consecutive large files, so those are usually the only ones worth converting.
Why are my old 3GP phone videos so small?
3GP was designed for 2G and 3G networks, often at 176x144. Convert to MP4 for compatibility, but do not upscale: enlarging the frame just makes the compression artefacts bigger.
What is the best target format for old video?
MP4 with H.264 for anything you want to watch or share, MKV if you need to keep multiple audio or subtitle tracks, and MP3 or WAV if only the audio matters — old lectures and interviews often fall into that last group.
Will converting improve the quality?
No. Conversion changes the container and codec, not the information that was captured. Deinterlacing DVD footage and picking a generous bitrate will stop it getting worse, which is the realistic goal.
Are these files uploaded to convert them?
No. Morphix decodes legacy formats with ffmpeg compiled to WebAssembly inside your browser, so family archives and old recordings stay on your own disk.