LaPorta
Well-known member
That won't work on a period Mac with OS 9.
Converting 1990s TVOD Mac video files to something current
- Thread starter bigmessowires
- Start date
bigmessowires
Well-known member
Thanks! I actually don't think I own any machine that will run QuickTime 7 - everything I have is either too old or too new - but I'll try QuickTime 4 under OS 9.
The converted video seems to run at about 5 fps. Does it look the same when you viewed the original?
The converted video seems to run at about 5 fps. Does it look the same when you viewed the original?
mikes-macs
Well-known member
I think the version of QuickTime on the emulated Mac OS 9 computer will do this once you register it with a Pro key and open up the export options.
To batch export files, a simple AppleScript can automate this with saved export setting within QuickTime Player.
mikes-macs
Well-known member
Yes, it appears the video was recorded with low frame rate and specs. If you look at the first screen shot above it reports FPS as 3.82
I wouldn't be surprised if this was an early attempt at capturing VCR content with a slow Mac such as A Mac IIsi with Super Mac Video Spigot or something similar. Perhaps using Mac System 6 or 7.
I wouldn't be surprised if this was an early attempt at capturing VCR content with a slow Mac such as A Mac IIsi with Super Mac Video Spigot or something similar. Perhaps using Mac System 6 or 7.
mikes-macs
Well-known member
Can the CD containing the video files be loaded on your modern Mac? If so, that would be the most direct way of importing the files as opposed to going thru the emulator. Using Quicktime Player 7 if you can get it.
Of course, in Mac OS 9 you would just drag the .img onto the Disk Copy window.
In an emulator, you could copy the small disk images onto a big disk image and include the big disk image as a disk or you can have the emulator include all the disks.
LaPorta
Well-known member
Yes, but Disk Copy won't open those .dsk images.
LaPorta
Well-known member
Nice! Will it save as an MP4 or DV stream, though? I would think it would predate all of that.
No need to recompress. You can retain the QuickTime MOV container and video data as-is. You need to merge the data from the resource fork into the data fork. Once you have a proper MOV container file, modern tools like VLC and ffmpeg should be able to process the files. I don't suggest recompressing due to the low resolution and small size of these files, best to leave them as-is.
See: https://stackoverflow.com/questions/67873319/merge-mac-resource-fork-into-quicktime-file
github.com
See: https://stackoverflow.com/questions/67873319/merge-mac-resource-fork-into-quicktime-file
GitHub - mivk/qt-unfork: Flatten old Quicktime movies which use a separate resource fork for the moov atom
Flatten old Quicktime movies which use a separate resource fork for the moov atom - mivk/qt-unfork
github.com
robin-fo
Well-known member
It will save it as DV! Just tried it using MoviePlayer 2.5 and QuickTime 4 on Mac OS 9.1
LaPorta
Well-known member
No need to recompress. You can retain the QuickTime MOV container and video data as-is. You need to merge the data from the resource fork into the data fork. Once you have a proper MOV container file, modern tools like VLC and ffmpeg should be able to process the files. I don't suggest recompressing due to the low resolution and small size of these files, best to leave them as-is.
See: https://stackoverflow.com/questions/67873319/merge-mac-resource-fork-into-quicktime-file
GitHub - mivk/qt-unfork: Flatten old Quicktime movies which use a separate resource fork for the moov atom
Flatten old Quicktime movies which use a separate resource fork for the moov atom - mivk/qt-unfork
This is a good point. If you can save as a MOV in a modern format without the resources, that is ideal.
bigmessowires
Well-known member
I see. So to avoid re-encoding the original video, basically you would use QuickTime 7's "save as self-contained movie" option, rather than converting it to MP4 or AVI.
FYI I haven't heard anything more from the school... at the moment I only have one .dmg file containing two videos, and none of the original CDs, I'm not sure what they're expecting at this point. This was helping a friend of a friend, and I'm not clear about the original purpose of it all.
FYI I haven't heard anything more from the school... at the moment I only have one .dmg file containing two videos, and none of the original CDs, I'm not sure what they're expecting at this point. This was helping a friend of a friend, and I'm not clear about the original purpose of it all.
LaPorta
Well-known member
Exactly.
mikes-macs
Well-known member
Yea, export functions are available in Movie Player 2.5
I experimented with your movie using Compressor from the Final Cut suite and it can export it to just about anything, with options to decompress the entire video and perhaps change from thousands of colors to millions. Then recompress to mov. Maybe increasing the frame rate at the same time.
I experimented with your movie using Compressor from the Final Cut suite and it can export it to just about anything, with options to decompress the entire video and perhaps change from thousands of colors to millions. Then recompress to mov. Maybe increasing the frame rate at the same time.
Just drag the .dsk file to the Disk Copy application window.
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