Free online AVC to VCD converter

What the AVC format is

AVC usually means H.264/MPEG-4 AVC, a video codec used in camera recordings, phone videos, streaming files, Blu-ray-compatible material, and exports from editors such as Adobe Premiere Pro, DaVinci Resolve, and FFmpeg. An .avc file is often a raw H.264 elementary stream without a container, so it may contain video but no audio. AVC commonly uses resolutions, frame rates, and bit rates that do not meet VCD requirements.

What the VCD format is

Video CD is a disc format built around an MPEG-1 program stream, normally stored as AVSEQ01.DAT in the disc's MPEGAV directory. Standard VCD video uses 352×288 pixels at 25 fps for PAL or 352×240 pixels at approximately 29.97 fps for NTSC, with MPEG-1 video near 1,150 kbit/s. Audio is MPEG-1 Layer II at 44.1 kHz, commonly 224 kbit/s.

VCD is useful for older hardware and systems that cannot decode modern AVC files. Its fixed specification improves compatibility, but its image quality is substantially lower than the source quality and usually lower than DVD or modern compressed video.

How to actually convert AVC to VCD

Using FFmpeg

1. Make a backup of the original file. If the AVC file contains no audio, obtain a separate audio track before conversion; FFmpeg cannot create meaningful source audio from a video-only stream.
2. For PAL output, run ffmpeg -i input.avc -target pal-vcd -f vcd output.mpg. For NTSC output, run ffmpeg -i input.avc -target ntsc-vcd -f vcd output.mpg.
3. If FFmpeg cannot identify a raw H.264 stream automatically, specify its format: ffmpeg -f h264 -i input.avc -target pal-vcd output.mpg. Add an audio input when necessary, for example ffmpeg -f h264 -i video.avc -i audio.wav -map 0:v:0 -map 1:a:0 -target pal-vcd output.mpg.
4. Play output.mpg before authoring the disc. The file must contain MPEG-1 video and VCD-compatible MPEG audio; merely changing the filename extension does not create a VCD.

FFmpeg's -target pal-vcd and -target ntsc-vcd presets select the main VCD encoding parameters. Choose PAL or NTSC to match the player and television system, not just the source extension.

Authoring and burning the disc

A compliant MPEG file still needs VCD disc authoring. With VCDImager, create a disc image using vcdimager -t vcd2 -c videocd.cue -b videocd.bin output.mpg, then burn the resulting cue/bin image with a disc-burning application that supports cue sheets. In a graphical burner, choose Burn image or Burn disc image and select videocd.cue; do not burn the MPEG file as an ordinary data disc.

For a no-installation option, the built-in converter on 101convert.com can convert the file online for free. Download the resulting VCD-compatible output, then use VCD authoring and image-burning software if a physical Video CD is required.

Quality, compatibility, and limitations

• Conversion is lossy twice: AVC is decoded and then compressed as low-bit-rate MPEG-1. Increasing the output bit rate does not restore detail lost by the VCD standard.
• VCD capacity is approximately 74 or 80 minutes because the video is written at a near-fixed rate; longer videos require multiple discs or nonstandard settings that may not play reliably.
• Use 4:3-compatible source framing or crop and scale deliberately. VCD has no modern widescreen standard, so a 16:9 source may appear stretched unless it is letterboxed or cropped before encoding.
• Some players accept nonstandard XVCD files, but compatibility is lower. Use standard PAL or NTSC VCD settings when playback on older hardware matters.