IDVD appears to produce better "hi-def to DVD" than DVDSP and Compressor.

For the last 4 years I have used DVDSP and Compressor to burn DVDs from my HDV and AVCHD/ProRes 422 projects but have always been plagued by the well known less than perfect results.
For some reason creating DVDs from HD material results in slightly lower quality than when using standard def media.
Artefacts such as double-lining and aliasing have been discussed at length in the forums and weird and wonderful time-consuming solutions such as the Bonsai technique have been proposed.
Recently I had reason to go back to iDVD and to my surprise the video quality appeared to be better than DVDSP's.
Gone were the minor but irritating artefacts I had become accustomed to.
Instead I now get sharp smooth images.
It's still early days and I don't know whether the results are due to the idiosyncracies of my editing/burning setup. The DVDs were played in both a Panasonic BD player together with a Panasonic DVD player and viewed on a Sony 40" HDTV connected with HDMI cables.
Maybe if anybody has a few spare moments between projects they could test it out.
Note that I have only tested this with iDVDs "Best Performance" setting which is suitable for DVDs up to 65 minutes long.

Ian,
I'm not sure you need another voice in this conversation…but here's my 2 cents.
While I agree that iDVD can do a very good job of encoding HD to DVD specs, I can't think of any reason why it should be superior to Compressor. In fact, my experience has been the opposite; I get somewhat better (cleaner) results using Compressor and DVDSP. The principal reason is I can start with my saved presets and then – like Michael mentioned…take a small test section and make adjustments if I see something that I don't like.
As for scaling, I do it first, then I make the MPEG as a separate step, (There was a recent thread about this questioning whether this added any value. No mater; it's the way I do it unless I don't have time.)
Good luck.
Russ

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I have tried authoring a 75 min project using compressor and dvdsp and I get this strange pulsing pixelation in certain shots. I author the same project in idvd, I don't get any pulsing, but in the last 10 minutes of the project, I get pixelation on playback.
I have a deadline tomorrow and I'm ready to throw my new macbookpro out the window. I have made numerous tests, using default settings and custom settings, used various disk brands, and still I can't seem to manage the simple task of authoring a 75 min dvd.
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Hi
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HT1583 When burning a DVD of photos and music from iDVD, the photos blur right before the transitions and the music has about 5 second glitches here and there before the music starts again. Is there any way to burn the DVD without this happening?

Each year I am in charge of making a slideshow of photos and music for my annual company meeting. I always use iDVD to set up my photos and music and then burn the DVD to play at the meeting. Every time I burn the DVD, it blurs right before the transition of the photo. It has always done this and I'm not sure why. It will also make the music glitch in a few spots for about 5 seconds or more. If I burn another DVD to try it again, the glitches will still be there, but in different spots. I've tried the highest quality of DVD's possible and this still happens. What can I do to fix this problem?

Try disabling transitions altogether!
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When you add transitions iDVD has no option but to use a video stream, this can result in terrible 'breakup' because the mpeg 2 encoder isn't designed to handle scenes that are static with a sudden short change. You can see 'artefacts' in the video stream…
https://en.wikipedia.org/wiki/Compression_artifact
'Still image slideshows' avoid the issue altogether by only showing a static image, no video compression is used & because the scene doesn't transition so it shouldn't breakup.
NOTE: Music on the slideshow is irrelevant, both types can use a soundtrack.
I cannot remember if it is possible to force iDVD to only make still image slideshows, I always use DVD Studio Pro to correctly setup DVD's. I'd suggest you use the option to save the DVD to a disk image & then open that disk image so that DVD Player can preview it, that should save on the number of test disks you burn.
If you cannot make it avoid using video streams you may be ether off making your own video slideshow in iMovie & then import that into iDVD. It may eventually look better despite being a video stream!
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Sorry to repeat the question below, which I have also posted under DVD SP...I thought that perhaps someone watching Compressor would also have input.
I have been trying to obtain a DVD output with DVD Studio Pro where moderate speed pans don't jerk. Oddly, I get better results using iDVD. The image in iDVD isn't as sharp, but the quality of movement (pans, tilts) is smoother. My program length is only 20 minutes and I have used compressor to encode outside of DVD SP. The compressor setting was for DVD, 60 mins, best quality. Why is it that a consumer software such as iDVD yields better results in this aspect? What am I doing wrong in DVD SP that results in less than professional results. All input appreciated. Thanks in advance

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hy is it that a consumer software such as iDVD yields better results in this aspect? What am I doing wrong in DVD SP that results in less than professional results.
You are messing around with Compressor settings . . . I guess!
Hope that helps !
Alberto

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IDVD appears to produce better "hi-def to DVD" than DVDSP and Compressor.

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