VC1 (video/vc1) uses lossy compression optimized for blu-ray video, windows media, xbox game videos. VC-1/SMPTE 421M, Windows Media Video advanced profile
Y4M (video/x-raw-yuv) uses lossless compression optimized for lossless video processing, codec testing, video production intermediates. YUV4MPEG2, uncompressed YCbCr 4:2:0 video stream for encoding pipelines
Reach for VC1 when your priority is blu-ray video, windows media, xbox game videos — its efficient compression makes sharing fast and storage minimal.
Reach for Y4M when your priority is lossless video processing, codec testing, video production intermediates — its uncompromising quality ensures every detail is preserved.
Learn more about VC1 and Y4M formats in our detailed guide.
Convert VC1 files to Y4M online for free. High-quality conversion with no registration required.
Upload or enter a URL to convert VC1 to Y4M instantly
or paste from clipboard
.vc1,.VC1 (max 100MB)
Verifying security check…
VC1 (VC1) - VC-1/SMPTE 421M, Windows Media Video advanced profile. Best for blu-ray video, windows media, xbox game videos.
Y4M (Y4M) - YUV4MPEG2, uncompressed YCbCr 4:2:0 video stream for encoding pipelines. Ideal for lossless video processing, codec testing, video production intermediates.
Yes, GoConvertFile offers free conversion of VC1 to Y4M for files up to 100MB. No registration required.
Most VC1 to Y4M conversions complete within seconds for standard-sized files. Larger files may take longer depending on the conversion complexity.
Y4M is ideal for lossless video processing, codec testing, video production intermediates. YUV4MPEG2, uncompressed YCbCr 4:2:0 video stream for encoding pipelines
No, converting VC1 to Y4M does not cause additional quality loss — Y4M uses lossless compression. However, any artifacts already present in the original VC1 file will persist in the Y4M output.
Y4M files are typically 2-5x larger than equivalent VC1 files because Y4M preserves all pixel data. This is expected and necessary for lossless quality.