Problem With HF21 Camcorder ? - AVS Forum
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post #1 of 7 Old 10-09-2010, 12:43 PM - Thread Starter
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I've got 6 video clips saved on the camcorder. When I try to save 'em onto the computer (Windows 7 64-Bit), it splits them into 17 different .MTS files instead of just the original 6 movie clips.

Basically, when I plug the camcorder into the USB and the new drive shows up, I get 17 different .MTS files showing, instead of the 6 movies that are in the camera. A couple of the clips are 30 - 60 minutes long.

How do I get the 6 original movies onto the computer without them being broken up?

Thanks.

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post #2 of 7 Old 10-09-2010, 06:48 PM
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A lot of editors can deal with them in that format.

Baring a file system that supports > 4GB files...
(!FAT32, but NTFS will)

C:> copy file1.mts/b+file2.mts/b+file3.mts/b big_file.mts

or

$ cat file*.mts > big_file.mts

depending on your OS. Generally it's a binary break, which can / will happen mid GOP with no headers on the sub files. And stuff like that. Doing a binary join puts them back into a single file. FAT32 which SDHC cards are formatted with can only hold 4GB files so it breaks out a new one every 20-ish minutes depending on bitrate and stuff. Roughly 1GB for every 5 minutes of footage.
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post #3 of 7 Old 10-09-2010, 07:57 PM - Thread Starter
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Say that again? I don't understand all that.

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post #4 of 7 Old 10-09-2010, 11:22 PM
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I believe he's saying that your SDHC card is formatted with a FAT32 file system. The limitation of the FAT32 file system is that it can't deal with a file larger than 4gb. So every time your camera writes to that card it can only do so in 4gb chunks. It writes 4gb then must start a new file.. write 4gb.. start a new file.. lather.. rinse.. repeat.

So you either deal with the multiple files and join them together in an editor or you use the command line stuff he listed in order to combine them all into one larger file after you dump them onto the computer.
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post #5 of 7 Old 10-10-2010, 01:58 AM
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Not sure about S21, but older Canon camcorders split in 2GB segments, not in 4GB. Use software that came with the camera to stitch the segments, or use copy/b command.
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post #6 of 7 Old 10-14-2010, 07:13 PM - Thread Starter
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The camera has internal built-in flash memory.

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post #7 of 7 Old 10-15-2010, 05:24 AM
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Quote:
Originally Posted by JohnnyGalaga View Post

The camera has internal built-in flash memory.

Which is probably still formatted to Fat32. It's a licensing thing. And a software thing since it'll have to handle external flash the same way.

If you're familiar with *nix OSes, the resulting files are the same as if you had run split on a large file. Doing the binary join basically UNsplits. But many commercial editors (NLE) can handle the footage as is. As long as said software is fairly recent. At a minimum the editing software that came with the camcorder should be able to do something with them. (not to imply something NOT hideous)

If you're still on Win95, Win98, WinME, then be advised that your primary (and default) filesystem is Fat32. Many of the windows options past that are NTFS, and/or give you a choice at the point of installation. Plus the usual limits that are generally associated with windows.
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