How much memory is consumed on a computer when converting analog video to digital?
Posted on Jan 03, 2010 under Digital news and reports |converting 2 hour hi-8 and 8 mm tapes into digital versions for DVD burning and playback. Only 40 gb of free space on my computer. Will get external hard drive eventually and know these tapes will take up a lot of space. I have about 40 to 50, and need to get some tips….
January 3rd, 2010 at 8:23 am
Analog to digital - if you import as NTSC standard definition, 60 minutes on the tape will use 12-14 gig of computer hard drive space. So, in your case, 24-28 gig.
You NEVER want to use all of the available computer hard drive space - you MUST always have some available - I never let mine get below 20% of the total hard drive. Assuming you are referring to the start up drive in your computer, the operating system must have hard disc space available to use a "virtual memory". This is an extension of the real electronic RAM in the computer - and there is never enough of that which is why virtual memory is needed. If you start getting low on virtual memory, this will negatively impact the computer - and things like lock ups and crashes can happen.
Once you get the video on to the computer, then render for DVD burning, even more space will be used by the VOB file and DVD menuing application. Your computer hard drive space is too close to the edge for my comfort. You need to use that external drive for this project.
January 3rd, 2010 at 8:23 am
at the present time, video capture cards convert analog video to DV (as in miniDV) which while good quality, consumes about 12 GB per hour. hardware to perform the codec exists because when DV was developed some 15 years ago, convertiblity to and from NTSC or PAL analog was a prime consideration. more recent highly compressed formats have been developed, but they require component video directly as captured by the CCD and are meant to be played by computers so they are not analog friendly. i don’t see sufficient consumer demand for analog capture to justify the much higher cost associated with high compression codecs.
you are going to be able to do only one tape at a time. convert that to DVD, then delete from hard drive before doing the next capture. with 50 tapes this is a multi-month project.
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