Re: best way converting 1080p to 576i

If the source is progressive, Compressor will create interlaced video with two identical fields for each original progressive frame, each with half the vertical resolution. As such, the video will not 'look' interlaced, as it lacks the temporal information you would need to achieve this. This may be a problem if you are trying to blend 1080p with existing interlaced footage. You may want to make an 'artistic' decision to de-interlace any 576i footage you have to match with it.

You may well get aliasing with any downconversion of this type - caused by the detail in the original. You will find settings in Compressor to alleviate some of these issues - but it's inevitable to some extent. Test your own presets in Compressor on short sections of the original - the correct settings will vary depending on the source material. Be grateful you're not going the other way - upconverting and going to progressive.

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