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1st December 2008, 15:57 | #1 | Link |
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Lossless video compression for archiving?
Hi,
Sorry if this should be in a sub-forum but it didn't seem to fit the categories. I have tons of home movies, some in DV avi (from a mini-dv camcorder) and some in Mpeg shot with my canon elph. I use a fairly small percentage in making my "produced" home movies, but I want to archive the rest for possible future use. But I'm running out of external hard drive space. Windows NTFS native compression option doesn't actually save space with video files. Is there any way to compress DV and/or mpeg files for archiving to save hard drive space in a lossless manner? I don't care if they are unplayable while archived, but it's important that they can be uncompressed and returned to their original state at a later time. Thanks! |
1st December 2008, 17:57 | #3 | Link |
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So does that mean there is no way to compress it to save space?
I'm surrounded by way too many hard drives. Moreover, due to my lack of trust of technology, I need two copies of everything, so 200gb (and counting) of archived video footage means two separate high capacity drives. |
1st December 2008, 18:04 | #4 | Link |
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@shmendrapolk
DV avi files are already compressed, so I don't think it is possible to reduce their size further in a lossless manner. However, you could try is running some really strong archiver like 7-zip to compress your DV's, but even in this case the size reduction will most likely be very small (probably 3 - 5 %, but that's just my guess). |
1st December 2008, 18:22 | #6 | Link | |
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Quote:
200GB is nothing these days. You can get reasonably priced 1000 GB drives quite easily now. |
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1st December 2008, 18:45 | #7 | Link | |
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@shmendrapolk
Hi! Quote:
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1st December 2008, 21:40 | #8 | Link | |
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I guess it matters where you are located and how much levies you pay for blank media (here 50 dvdr5 is about the same price as 500GB HD - actually just checked one store and the price was exactly the same)... |
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1st December 2008, 21:45 | #9 | Link |
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@Maccara
Hi! In addition to the (in the U.S.) low cost per blank DVD5, I prefer to use them for backup storage because of the difference in the "loss risk factor" - If the hard drive fails, you risk losing everything, whereas, if a DVD fails, you've only lost the contents of that individual DVD... |
1st December 2008, 21:50 | #10 | Link | |
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Quote:
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1st December 2008, 22:51 | #11 | Link | |
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plus 4 1TB drives + Raid5 = 3TB of storage thats got 99.999% reliability... or you could got 5 drives and raidz-2 |
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2nd December 2008, 00:11 | #12 | Link |
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AFAIK, x264 has a "lossless" mode, although i don't know if it is truly lossless. It can only be decoded by CoreAVC currently, though. The advantage would be superior compression. My calculations show about a 45% increase in compression over lagarith.
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2nd December 2008, 05:43 | #15 | Link |
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Yuvsoft lossless in yv12 mode (all posssible destination formats are yv12, so I don't consider this a loss) can usually outcompress dv video. Of course, it isn't a sure thing, since dv is cbr, and lossless compression by nature is completely vbr, noise, and picture stability also play a role. Its very slow, and will offer no improvement on your mpeg files, but its probably your best option.
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compression, lossless, video |
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