View Full Version : Help A Future Filmmaker Out. PLEASE!!!
John Doe 57
Jun 10, 2008, 06:58 PM
Made a huge project in iMovie. (2 Months of Footage)
Exported every single video (18 in all) to "M4V" format.
All videos appeared great in iDVD.
Burned a 2.93 GB iDVD Project to a Re-Writable DVD.
Was left with "shaggy, distorted, slow-moving" video content.
Also included a green bar at the bottom of the screen in every video.
**BAD- Deleted every iMovie project to help save space on my HD.
**BAD- Taped over all the footage on my camera.
**BAD- I have tried many methods of converting these videos to another format but no luck.
Help a future filmmaker out. PLEASE!!!
QUESTIONS:
1. Has anyone had this problem?
2. Can I convert these videos to another format without a glitch?
3. Can a data rescue program find deleted iMovie Projects?
ppc_michael
Jun 11, 2008, 12:49 AM
MPEG is lossy, so you will never recover the full quality DV.
What resolution are the M4P files?
Do you have Quicktime Pro? That can help you convert video.
deputylove8
Jun 11, 2008, 05:12 AM
Use Ulead Video studio. I love it. It's way easier. It runs only in windows though. So I guess, maybe u install Windows on yr mac.
Its waaay friendlier when it comes to video formats.
yoyo5280
Jun 11, 2008, 05:31 AM
All I can say is that I hope you use bootcamp. Also if you did not do secure delete then maybe some software can recover it. Best of luck. I know how hard this is!
cpcarrot
Jun 11, 2008, 08:31 AM
Do you actually mean "M4P" or do you mean “MP4”. The first is usually an audio file, while the later is a common video format?
OK lets look at what you have:
1st – Is there any way of recovering the original footage / files? It sounds like probably not; if you’ve overwritten the tapes they will be unrecoverable (by the way tapes are cheap and if you are using them for footage it is a good idea to store them rather than reuse them as they make an excellent all else fails backup). Files wise do you have any form of backup (such as time machine)? If so simply go and fetch. Finally as already suggested you could try data recovery software to recover the files BUT as you did this to clear space on your hard drive you probably won’t be able to recover everything as the sectors may already be overwritten.
2nd What is recoverable from the files you do have, i.e. can this be converted to a useable format. Basically will need some more info on the files. 1st how much footage are we talking about? (i.e. total length of all 18 files combined, are we talking minutes or hours?). 2nd if you can view the files with the inspector in finder or via QuickTime properties what codex is in use? What is the resolution? What is the frame rate? Depending on what format it is now in will determine what useful information you can get back out of the files.
Keebler
Jun 11, 2008, 10:56 AM
JD,
I feel for you.
You're probably rightly upset about all of this, but now you learned 1 important lesson: back everything up. It should be your very first step upon starting to edit and as you go along and then always after final output :(
visualhub might help you out as well as other similar programs, but in the end, you squished the nice, fat, juicy sandwich (ie. original video) into a thin, half beautiful sandwich (mp4s) and now, you'll never get that original perfect sandwich back. You might get something similar back, but nothing ever perfect.
Also, the next time you go to edit, don't output to mp4 then mpeg2 in idvd. Leave it as a full NSTC (or PAL) then mpeg2 it. What you did is compress the footage 2x's, which isn't necessary.
I hope you take all of this as constructive criticism and nothing malicious. The last thing (and it should be the 1st thing) - know your editing systems and workflows properly and as best possible. Using these systems will allow you to put your thoughts to your audiences, across properly.
Good luck,
Keebler
aloofman
Jun 11, 2008, 12:14 PM
It doesn't sound like there's much you can do here. Again, you've learned some lessons the hard way:
1) Always keep your tape originals.
2) Backup your media.
3) At the very least, keep your media until you know that you're happy with your final product so you can fix it if something goes wrong.
I wish we had better news for you.
Consultant
Jun 11, 2008, 01:04 PM
User Error.
Sounds like you encoded the video into low resolution files with low frame rate (probably 15 FPS).
There is not much you can do if that's the case, since you have deleted the originals. In the future, never tape over any footage that you want to use as a backup.
John Doe 57
Jun 11, 2008, 09:52 PM
Damn it! I keep typing m4p instead of m4v
Here is a picture:
119725
ppc_michael
Jun 11, 2008, 11:32 PM
What format are those clips in iMovie behind the export dialog? Can't you use those?
John Doe 57
Jun 12, 2008, 02:27 PM
What format are those clips in iMovie behind the export dialog? Can't you use those?
That is just an example of how I exported the iMovie project. But the real iMovie projects that I need have been deleted.
The videos behind it are DV format. Imported with a Sony HandCam DCR-TRV280 NTSC.
cpcarrot
Jun 12, 2008, 05:50 PM
I guess the next question to ask is if you still have the m4v files stored or if you just have the burned DVD?
At this stage it is looking very unlikely that you will be able to recover the footage in anywhere near the quality you started with. You've got a whole bunch of conversion going on down the line:
1st - Your camera has compressed it to DV
2nd - On importing to iMovie iMovie converts it into Apple's Intermediate Codex
3rd - Exporting it to m4v exports it as an mpeg 4 file and depending on the settings this can be very lossey.
4th - By using iDVD to burn it to DVD this will then have converted all the footage into mpeg 2 before burning it. Again probably resulting in loss of data.
If it looked OK in iDVD before burning then chances are the m4v files were still decent quality so if you still have them stored somewhere they are your best bet. If you just have the footage on the DVD then it seems likely that what you see is what you get... At least I'm out of ideas anyway.
I also have no idea what is causing the green bar to appear at the bottom. I take it your playing the footage back on a DVD player right?
John Doe 57
Jun 12, 2008, 08:45 PM
Well the green bar appeared on my DVD player and also on my computer. All though after a re-check I found out that this bar does not appear on every video. The bar only appears on the DVD and not in the iDVD project.
And yes, I have every single video clip saved on my computer. All the clips play fine with no lagging. But all the clips are m4v.
I thought I should add that some of these videos are on YouTube and they all play fine.
http://youtube.com/watch?v=J4daPGoeYzE
http://youtube.com/watch?v=igJwwCR-3YI
http://youtube.com/watch?v=g_vkR7Lrw9Q
cpcarrot
Jun 13, 2008, 06:22 AM
Well if the m4v files are still in good shape you may be OK. Can you ctrl click on one of the files in finder and select "get info" and eitehr give us a screen shot or tell us what the inspector shows. It should give the full details of the resolution, frame rate, codex, as well as length and file size. This should tell us what sort of quality you are left with. Also how much footage total are we talking about (i.e. all files combined how long are they in length and how much disc space do they all take up?)
If the files are still good it should just be a case of converting them to DVD for minimum of loss. IIRC iDVD does not convert MP4 files very well so this colud be the problem, depending on what the iDVD settings are could also be an issue...
mikecorp
Jun 13, 2008, 11:52 AM
record your project back to camera!! and then start new project import and burn dvd
madmaxmedia
Jun 13, 2008, 01:14 PM
Yes, if your m4v files play well on your computer, then you should be able to get something back here. It won't be original quality, but depending on the export settings might still be fine. As cpcarrot says, you need to find out exactly what size, resolution, bitrate, frame rate, etc. these m4v files are. That will tell you what you can reasonably expect out of these.
I would not record the video back to camera, then re-import. It's one way to do it, but adds at least 1 extra de-compress/re-compress step.
If iDVD is not doing a good job of converting your m4v to DVD format video (MPEG2), you might try something like Roxio Toast or Popcorn which can create a DVD from your assorted clips (I haven't done it before, so I'm not sure how good the conversion will be.) I'm sure there are plenty of other options too, both Mac and PC.
I think among the many take-home lessons from this example, the most important is perhaps to save your original DV tapes. Saving HD backups is good too, but I understand that often we run out of space, etc. But DV tapes are so cheap that if you are shooting anything for any level of production, just save the tapes.
madmaxmedia
Jun 13, 2008, 01:18 PM
BTW- good job Nick Gerardi!!! ;)
John Doe 57
Jun 13, 2008, 02:27 PM
BTW- good job Nick Gerardi!!! ;)
You know him?
John Doe 57
Jun 13, 2008, 02:34 PM
OK. I took a look at the get info windows:
Dimensions 720 x 480
Codecs AAC, H.264
Channel Count 2
Bit rates are different for all the videos. They are in the 2,000 range and above.
madmaxmedia
Jun 13, 2008, 02:37 PM
You know him?
No, I watched your YouTube video though- ;)
Based on the info on those exported clips, you are probably in reasonably good shape. You just need to find a better way of converting/prepping those clips for DVD.
John Doe 57
Jun 13, 2008, 03:20 PM
All right! Thanks for the help. But I can't find a Roxio program that lets me create a DVD project. There are a lot of DVD programs on their website, but they run on Windows.:(
madmaxmedia
Jun 13, 2008, 03:36 PM
I'm pretty sure Roxio Toast can do it-
http://www.roxio.com/enu/products/toast/titanium/overview.html
John Doe 57
Jun 13, 2008, 05:20 PM
Oh man! I didn't realize that Toast had other options of burning modes! I have had Toast 9 all this time! I've created a project and am burning it right now!
madmaxmedia
Jun 13, 2008, 05:33 PM
Even better if you already have it!
Let us know how it works out-
John Doe 57
Jun 13, 2008, 07:07 PM
Damn! Toast only got rid of the green bar, but the performance of the video is still slow. Why would Apple create a video format if it couldn't be put on DVD? There has to be some way to get the videos to play correctly.
cpcarrot
Jun 14, 2008, 11:11 AM
Your not somehow changing the frame rate when you are burning the DVD are you? Say going from a PAL format to a NTSC format or something equivalent? A change in the frame rate would be one of the few things that would cause the footage to actually slow down.
Open the file in Quicktime, go to window - show movie inspector. This will show the FPS (Frames per second). If it is PAL it should read as 25 if it NTSC it will be 29.97. A change in frame rate is about the only thing left I can think of as the m4v files look OK and Toast should be OK at doing the conversion for you.
John Doe 57
Jun 14, 2008, 12:53 PM
I checked that and it read 29.97 FPS. I also should say that when I went to burn the DVD in Toast, it asked my if I wanted to re-encode all the movies to PAL format. It said that my TV mode was in PAL mode and not NTSC mode. I didn't know what to do, so I clicked don't encode.
cpcarrot
Jun 14, 2008, 07:33 PM
Just a guess - But it sounds like what is happening is that Toast (and iDVD) is trying to create a PAL disc from NTSC footage. PAL works at 25 fps and 720 x 576 pixels. NTSC is 29.97 fps and 720 x 480. Trying to play 30 fps at 25 fps will slow down your footage by 16.67% and the missing 176 vertical pixels may also explain the green bar at the bottom iDVD was tryin g to put in.
Go to preferences in toast and check the audio visual tab. Make sure that it is set to use the NTSC standard and not PAL. When toast encounters footage of the wrong standard that it is trying to burn it pops up asking you if you wish to re-encode it to the right one (in this case it would ask you to encode it to PAL if you have your preferences set that way, which it sounds like it did ask you). Adjusting your preferences will allow it to burn an NTSC disc from your NTSC footage and assuming you have an NTSC DVD player it should then play correctly.
chv400
Jun 14, 2008, 07:53 PM
Another thing you might want to check is if the video file is actually choppy or if the DVD drive just can't keep up with the bitrate. Try copying the video files to the hard drive for playback and see if that solves the choppiness.
John Doe 57
Jun 14, 2008, 09:46 PM
Another thing you might want to check is if the video file is actually choppy or if the DVD drive just can't keep up with the bitrate. Try copying the video files to the hard drive for playback and see if that solves the choppiness.
Yeah I tried that but it was still choppy. Right now I am burning the DVD in Toast with the preferences changed to NTSC. Thanks for the help! Lets hope this works!
John Doe 57
Jun 14, 2008, 11:11 PM
Nope. Didn't work. Videos are still lagging. WTF!!!
John Doe 57
Jun 15, 2008, 08:42 PM
I got it! I can upload all the videos to YouTube and download them with the Activity Monitor. I remembered that YouTube has a new feature where you can watch the video in High Definition. This could work! It wont be in its best quality but what the hell!
Consultant
Jun 16, 2008, 11:54 AM
Have you tried VisualHub?
John Doe 57
Jun 16, 2008, 12:55 PM
Well I tried iSquint and just downloaded and tried VisualHub and both were not successful.
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