Free online 264 to VCD converter

Devices and authoring programs that support Video CD require MPEG-1 VCD video rather than a raw H.264 stream. Converting a .264 recording produces a compliant MPEG file that can be authored and burned as a Video CD.

What the 264 format is

.264 usually identifies a raw H.264/AVC elementary video stream without a container such as MP4 or MKV. CCTV and DVR systems, cameras, screen recorders, and encoders commonly create these files; FFmpeg and x264 can also produce them. A raw stream may contain no audio, duration metadata, or reliable frame-rate information, so conversion software may need those values supplied manually.

What the VCD format is

Video CD is a legacy optical-disc format using MPEG-1 video and MPEG-1 Layer II audio. PAL VCD uses 352×288 pixels at 25 fps; NTSC VCD uses 352×240 pixels at approximately 29.97 fps. The standard video rate is 1,150 kbit/s, with 44.1 kHz audio commonly encoded at 224 kbit/s.

VCD is useful for older DVD/VCD players, standalone MPEG-1 hardware, and archival discs intended for legacy equipment. A VCD is not created by merely renaming an output file: authoring software must create the disc structure, including the MPEGAV folder and AVSEQ01.DAT.

How to actually convert 264 to VCD

1. Identify the source standard. Use PAL settings for 25-fps material intended for PAL equipment and NTSC settings for 29.97-fps material intended for NTSC equipment. Avoid changing standards unless necessary.
2. Check whether the .264 file has audio. If audio was recorded separately, obtain the matching WAV, AAC, or other audio file and synchronize it before encoding. A video-only raw stream cannot produce normal VCD sound without an audio source.
3. Use FFmpeg to encode a PAL VCD-compatible MPEG file. For a source with separate WAV audio, run:

ffmpeg -f h264 -i input.264 -i audio.wav -vf "scale=352:288:force_original_aspect_ratio=decrease,pad=352:288:(ow-iw)/2:(oh-ih)/2,setsar=1" -r 25 -c:v mpeg1video -b:v 1150k -minrate 1150k -maxrate 1150k -bufsize 327680 -c:a mp2 -b:a 224k -ar 44100 -ac 2 -f vcd output.mpg

4. For NTSC, change the filter output to 352×240 and use -r 30000/1001:

ffmpeg -f h264 -i input.264 -i audio.wav -vf "scale=352:240:force_original_aspect_ratio=decrease,pad=352:240:(ow-iw)/2:(oh-ih)/2,setsar=1" -r 30000/1001 -c:v mpeg1video -b:v 1150k -minrate 1150k -maxrate 1150k -bufsize 327680 -c:a mp2 -b:a 224k -ar 44100 -ac 2 -f vcd output.mpg

5. Open output.mpg in a VCD-authoring application, choose PAL or NTSC to match the encode, create the disc image, and burn it as a Video CD. Do not burn the MPEG file as a data disc if the target player expects a VCD.

For a file-only conversion without installing software, the converter on 101convert.com can process the file for free. Disc authoring and burning still require a VCD-capable desktop application and optical-drive support.

Quality and compatibility limits

H.264 to VCD is a lossy conversion to a much lower-resolution, lower-bitrate format; it cannot improve a soft or heavily compressed recording. VCD capacity is approximately 74 or 80 minutes because the format uses fixed disc-oriented bit rates. The output may show aspect-ratio changes, interlacing artifacts, or motion blur when the source does not match the selected PAL/NTSC standard.

Some FFmpeg builds accept -f vcd but produce an MPEG file that still needs dedicated authoring for playback in hardware. Test the resulting disc on the intended player, because newer DVD and Blu-ray devices may omit VCD support.