Re-importing shared full-quality QT lossless?

Is there any loss of quality that would accumulate when sharing a project as a full-quality QT, then importing it back into iMovie, editing it a little, then repeating? Im thinking of using this workflow as a way of merging lots of little clips and shifted-around audio extractions to a single clip and will probably want to do this a couple of times per project, before compressing it in final form. Itll eventually wind up as a QT on CD, if that has any bearing on the question.

Is there any loss of quality that would accumulate when sharing a project as a full-quality QT, then importing it back into iMovie, editing it a little, then repeating?
No, IF you take care to use the same DV codec AND you do not edit the clips (i.e. decompress-recompress the DV codec). Straight cuts are OK because no recompression is involved.
...and even editing the clips (adding titles etc) should not produce any visible difference unless the editing app produces its own artifacts. ...and iMovie HD DOES produce its own artifacts to PAL titles (NTSC is OK):
http://www.sjoki.uta.fi/~shmhav/iMovieHD_bugs.html#titlesPAL
BTW, iMovie 4 had a bug where it used the wrong DV codec for PAL. If you didn't notice it, you lost some quality when converting to the correct codec.
http://www.sjoki.uta.fi/~shmhav/iMovie4bugs.html#PAL-DVCPRO

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AVCHD import & getting full quality import...

I've got a Panasonic HDC-TM20. When I look at the playback of the video on the actual camera the video quality looks a lot better than once imported into iMovie '09.
I am importing using the defaults "Full - Original Size", "Split days into events.", and do not "Analyze for stabilization".
Once imported the video looks a bit fuzzy. Here is an example of the video quality once imported:
http://www.youtube.com/user/JustAnotherFamily#p/a/u/0/zhasv9rXfyA
Is there anything that can be done to get the full quality of 1920x1080 AVCHD?
I feel like I'm missing a step in the process of getting full quality video.
Thanks again for any insights.

i also having the same problem.. im using panasonic HDC-SD100.. the video imported shows a bit movie trail as i use it to record skateboard footage(fast movement).

Error Sharing "Full Quality"

Hi All,
I have just completed an iMovie 5.02 movie and want to export it into Quicktime . It's an MPEG-4 format and the iMovie Project file is about 1.4GB. I choose Share > Quicktime > Full Quality, select a file name and hit OK. It runs for about 60-75mins, then just stops - no error message. It creates an .mp4 file (about 145MB) - when I try to open it with Quicktime, I get an error ("-50"?!). I've done this twice now, with no luck. Any ideas?
Thanks very much
Steve

Hi SR and Karsten:
Could it be this simple?
Mac OS X: "Error in user parameter list (-50)" With MS DOS-Formatted Volume
http://searchdocs.info.apple.com/article.html?artnum=25532&coll=cp
:)Sue
karsten...they call me the librarian-remember

Final Cut Pro X is not importing in full quality?

Hi,
I recently installed Final Cut Pro X and so far I'm really enjoying it.
The only problem is that it's not importing my footage in 1080p. I have the Panisonic NV-GS400 (a tape based camera) which records at full 1080p.
But for some reason it is imported at 720p in Final Cut Pro X.
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HT5903 Are photos stored in Shared Photo Streams in full quality?

Does anyone know whether photos uploaded to Shared Photo Streams are stored in full (original) quality?
I'm interested to know whether Photo Streams can be relied upon for backing up photo collections (i.e. they can be downloaded again in original quality in case of loss from the computer/phone/iPad they were taken with), or whether it is only really for sharing.
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tomwood1981 wrote:
Does anyone know whether photos uploaded to Shared Photo Streams are stored in full (original) quality?
No. Not for shared streams
I'm interested to know whether Photo Streams can be relied upon for backing up photo collections (i.e. they can be downloaded again in original quality in case of loss from the computer/phone/iPad they were taken with), or whether it is only really for sharing.
My photo stream keeps photos at full quality in the cloud, although it only syncs lower resolution photos to an iOS device, but full resolution to your computer.

IMovie Hangs After Full Quality Sharing Is Complete

Hi,
Why does this happen? I did a Full Quality Share on a 2-1/2 hour multi-clip movie (using Share Selected Clips Only). The export progress dialog hung after the export was clearly finished. I eventually had to Force Quit iMovie.
The exported movie looks fine in QT Pro. However, Movie Properties in QT shows that this movie is 24 frames longer than what I exported from iMovie. Doesn't seem to be a big deal, but annoying nonetheless.
I'm more concerned about iMovie hanging after a long movie export as described.

2-1/2 hour multi-clip movie (using Share Selected Clips Only)
so, your project is in timeline even longer then 150min? how much did you import into iM, to create such a "beast"? must be a gigantic project, hm?... Titanic II... ;-))
iM is a consumer product, we do read of reports here, that from some point of size (imported data, length, complexity of project), iM is a little "overwhelmed..." esp., iM is part of iLife, meaning, mainly meant exports go to tape (=60min max.) or iDVD (120min max.)
secondly, MacOsX is a UNIX system, which makes excessive use of socalled temp-files on (startup-) harddrive... it is recommended, not to overcrowd the drive 80 - 90% of max.
probably, your ~35GB of data transfer from a ~60GB project was simply too much for your Mac?
helpful?

Issues importing .mov at full quality

I have been using iMovie09 to edit video screen captures, imported as .mov files (1280x720) captured with a screen-capture software (iShowU). I've been importing them with the "Optimized" option set at "Full - Original Size" many, many times, and never had any issues. Now suddenly, I go to import the same exact .mov clips that worked fine previously, using the same exact import settings, and the video that's imported has horrible quality.
Granted, when I import at full size, there is a message telling me "Selecting Full on this computer may result in degraded video playback", but it's always been just fine until today. Might there be some maximum cache size somewhere that's hit it's limit? Other thoughts?
Thanks!

Hi, I am in a similar position with a Sony HDR-CX7. I shot at 1080i and am now trying to work out a good workflow to retain maximum quality for 720p output (not DVD or BluRay etc).
From my research, in general iMovie (after v6 at least) is not a good friend to interlaced source material. It appears that generally it is going to just dump a field of the interlaced source material to get to a progressive intermediate codec that the editing is done on. This is why I have been going with the "large" (30fps, 540p) option, as at least their shouldn't be artifacts, just some lost detail.
I have not experimented with the "full" import option to compare though, I would be very interested to hear from others who have and can give some facts about what is going on.
Overall I am disappointed that Apple have chosen to hobble their handling of interlaces source material in their consumer level products, given that iMovie 6 did a good job with it and a lot of consumer level camcorders still require it.

"Full Quality" = Poor quality text?

I am making a DVD, and am using video that is exported from iMovie HD. When I chose "full-quality" for the export, and view it when it is done, the quality (compared to how it looks in iMovie) is crap. It is especially noticeable in the "title slides" where there is just white text over a black background.
In my opinion, it definitely doesn't look like "full quality". What am I to do?

What I don't get, is that when I try to do the "share
to iDVD" feature, it opens a completely new project.
I already had one started, but it won't let me share
into that one. What do I do?
To add an iMovie project to an existing iDVD project, drag the iMovie project into the iDVD window. That is how we routinely include multiple iMovie projects on a single DVD.
As Lennart said, there's no good reason to export the iMovie project to a Full Quality movie you send to iDVD. In fact, it can cause problems. Your DVD won't contain the chapters you created in iMovie, for example.
When you Share an iMovie project to iDVD, or drag the iMovie project into the iDVD window, iDVD grabs a special movie iMovie stores for it inside the iMovie project package. The movie is in the package's Shared Movies > iDVD folder. To look inside the package, Control-click on the iMovie project and choose "Show Package Contents" from the popUp menu. (No need to go there unless you're interested. Don't change anything.)
The Full Quality movie you created is confusing you, for it's a confusing thing. iMovie calls it that not because it plays the movie with great clarity, but because it retains all the quality of the iMovie project. Exporting to a Full Quality movie hands us a movie we can import to another project with no loss of quality. Each type of iMovie project has its own type of Full Quality movie, following the movie format of the exporting project. There's never any loss of quality.
Changing the playback features of a DV movie in QuickTime Player has no effect on the quality of the movie itself or on the quality of a DVD you burn of the movie. It only affects playback quality in QuickTime Player itself.
QuickTime has been around a long time. On yesterday's slow computers, we would lower the playback quality on (huge) DV movies so we could play them more smoothly.
Note that if you have QuickTime Pro, you can set your QT Player preferences to play DV movies with high quality by default.
Karl

Export "full-quality" in iMovie '09.

Using iMovie HD, I used to export my footage as a full-quality QuickTime movie so I could archive it to disk and access it later. However, in iMovie '09, the "full-quality QuickTime" preset seems to have been removed.
What export settings in iMovie '09 will allow me to achieve the highest possible quality? I'd like to archive my footage to disk so that I'll always have a digital file to work with.
Thank you.

Welcome BarrenRegions to the  iMovie boards ..
no way to answer that question.. you have to compare apples with peaches.. (German proverb):
iMHD≥6 was a dv-only editor (and AIC, but this is another story...); it handles dv lossless.. frequent contributor lennart once made a test of ex- and reimporting a few dozends time the same clip = no loss of pic quality.
now iM08/09:
it handles dv not as dv internally anymore; therefore it accepts lots of other codecs (mp2, avchd, h264...).. so, depending of your source, the export can be lossy.
we have mile-long threads about that, search for posts from Steve Mullen and Euisung Lee who did research this issue +ad nauseam+
as far as I followed that discussion: there's a 'trick', to convert - after import into iM08/09 - the imports to AppleIntermediate with tools as QTpro or Mpeg Streamclip. that blows-up size, but forces iM08/09 to keep quality a 100%...
.. sorry for being less helpful, even as a 'Silverback' on this board, all that is +a bit+ beyond my skills, needs and understanding.. to be honest: I switched awhile ago to FinalCutExpress, and will use iM09 when I'll get a new rec-device.. hopefully this year (Santa! do you listen?!...)

Audio Pops after full quality export

I've imported some video thru my TV and thru my camera via Firewire - the audio sounds perfect.
Even in the imovie viewer it sounds great.
I then share "Full Quality" and the sound suddenly has some pops and crackles to it.
I have tried this with different video clips but I get the same problem.
Does anyone know why this is and how to avoid it?

This could be tough. You imported video through your TV? Or do you mean from your TV, to your camera (what model of camera)... how was your camera connected to the TV? Firewire from the camera to the computer, importing via iMovie?
In all likelihood, the audio is out of sync with itself as it is going through a lot of steps/conversions. Assuming you are taking an analog signal from the TV to the camcorder, the first link is determining what format of audio the camcorder is sending iMovie. If this is a DV camcorder, that is good. We want a 16-bit/48Khz sampled lossless audio file. If this is some sort of hard drive based, flash based, or HDV camcorder, enter problem 1: it is compressing the audio at that point. So, can you determine what type of audio you camcorder is sending iMovie?
After that, you will need to either convert the audio to a lossless format (PCM, AIFF) or export the audio at the same sampling rate/frequency as it was imported.
Mike

Full Quality Share?

I'm moving from an older version of iMovie into 7 ('08) and am having trouble determining what export settings to use.
In the older versions of iMovie I used Share -> Full Quality
The video will be imported into Avid for editing so I need as close to source as possible.
I've tried several settings so far in '08 and cannot get the quality where it needs to be.
I guess I'm looking for the '08 equivalent of 'Full Quality' when sharing a movie. .dv or .mov would either be fine formats.
Thanks in advance for any suggestions or guidance you may be able to provide.
Message was edited by: rustybucket145

Well, after a little more digging and searching it looks like a full quality share is no longer possible in iMovie '08. Bummer.
Anybody know if this is available in iMovie '09?

Converting to Quicktime Full Quality DV ...Why so long?

In an effort to avoid the Audio Encoding problem, I've been trying to take everyone's advice by converting the iMovie to a full quality DV but on my G4, for a 90 minute project it was compressing for about 5 hours and even then it was still displaying that there was 742 minutes to go and still that figure was rising. If anyone out there has got a minute to explain why this is so I'd be very appreciative.
Just don't get it? I highlighted 17 minutes of the project out of curiousity and shared that to Full Quality and that just took about 34 minutes!
Borrowed the work G5 DP 2GHZ and that seems faster at doing the task ( doing it now actually and it's up to 220 minutes and rising and less than a quarter of the way there) but this is still longer than exporting the project to the camera and then re-importing it to a new project. That's a guaranteed 3 hours and then it's less than 7 hours from encoding to burnt disc....no audio encoding problems. iDVD breezes through that task. (By the way, about 2 and a half hours on the G5 (wish I owned one)
Peter L
Dual 450 G4 Mac OS X (10.4.2)

Thanks so much for responding guys....
Len, yep camera is definitely recording in 16-bit.
John.... nothing HD here, all DV files. Yes plenty of free space on the HFS+ formatted drive.
Yes, there is lots to render in this project but when I singled out say 10 minutes of a segment that's full on slow-motion and sepia (with an mp3 under it too) and then sent that for sharing to full quality DV, it did it in 20 minutes or less.
So in my head I'm thinkin... 20 minutes to do 10 minutes of footage, 180 minutes to do the full 90 minute project.
Actually tried it with the identical project on work's G5 (same machine you have), and it still took about 7 hours overnight. And plenty of free space on its hard drive too.
I've done so many experiments over the last week with different discs, methods of exporting and importing, what gets the stalled Audio Encoding treatment and what doesn't and results on two different computers. I think I should make a separate post and report on my findings ( for what its worth) before I forget it all. Might help someone.
One of my best results was just opening the show package contents of the project, clicking on Shared Movies/iDVD/ and then just dragging the .Mov into a new iMovie project . Once again takes some time on the G4 and less on the G5 but for some reason the quality was slightly better than the results I got from the sharing to Full Quality DV. Noticed it at the beginning with the titles. There was bleeding in the letters on the Full Quality DV but it was nice and tight on the dragging the .Mov method. This is even before it was burnt to DVD.
John I can't believe how fast that G5 DP 2GHZ goes through the video encoding process. It's like almost real time. Do you think that even on the Mac Pro 2GHZ it would be as fast or nearly as? I should think about updating soon.
Thanks again
Peter L from the land downunder ....

Use secondary screen as in iMovie 09/export full quality

1. Is it possible to use a secondary screen to view the video preview of the video I'm working on a secondary screen, while viewing the time line and the rest of the tools on my laptops internal screen as you can in iMovie 09?
2. When exporting in full quality is it really full quality as on the miniDV-tape or has iMovie made any changes to the video or compressed it in any way?

Hi
1. Second monitor on Mac port - Don't know I do like this.
• connect Camera (miniDV tape) or A/D box to FireWire
• connect TV or referens monitor to analog out on Camera
• in iMovie pref set Playback via Camera
Now I see in realtime quality, color and audio as the result will be.
2. Well. All authority says that it's the same - but when I tested and from
original saved out a frame as .jpg then Export as full QT quality.
Import this into iMovie and then saved out same frame -
I get a noticable difference. A diagonal line is fairly good in photo from original
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Most probably I'm doing something wrong. Never figured out what.
Yours Bengt W

Leopard Screen Sharing (VNC) Quality?

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Normally when I VNC'ed to my Mac over the internet using UltraVNC on Windows it would automatically select the best image compression/quality (eg only displaying 256 colors only etc) to make it much quicker over the internet.
But the new Leopard VNC server only seems to allow full quality screen sharing, which is painfully slow over the internet (esp as my macs running at 1600x1500!), selecting anything other than Auto in UltraVNC will instantly disconnect after entering my VNC password.
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We can't export as .m2ts files?? how can i retain full quality?

so we can import .m2ts files into CS4, we can edit them in CS4, but we can't export them out of CS4?
how can I retain full quality?

i see, well i have the hdr-sr12. you can export to h264 blu-ray, then do the following - NTSC, 1920x1080, framerate(mostly you would want 29.97), Field order: UPPER, Profile: HIGH, LEVEL 4.0, VBR-2-pass: 16mbps target rate with max of 18mbps. After that, export and see how it looks like on VLC or windows media player.

Re-importing shared full-quality QT &#147;lossless&#148;?

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