Backup Device
Reply #28 –
There's a thread around here someplace where we discussed archiving to CD/DVD with PAR information.[a href="index.php?act=findpost&pid=233947"][{POST_SNAPBACK}][/a]
It's a good idea, but make sure to use PAR2's instead of the original PAR format. PAR2's will work with partial files, original PAR only worked with whole files. Use a pretty small blocksize too, I'd say. In fact, if you make the blocksize equal to the sector size on the CD, that might work out really well.[a href="index.php?act=findpost&pid=233987"][{POST_SNAPBACK}][/a]
I'm a little confused. Having investigated QuickPAR I must say that it is one of the more confusing UIs I've ever had the pleasure of interacting with. When you say "blocksize," do you mean the block size that you set on the "Options" page next to the "Exact" radio button? (BTW, blocksize for all DVD media is 2,048 bytes)
If so, how does that relate to the "Block allocation" block size? I can tell you one thing, if you make the "Block allocation" block size as small as you can (no where near 2,048 bytes) the "Compute time" becomes staggering.
On two 5 GB album-wavs, I set one for a block size of 2MB and it took about 1.5 minutes to compute. The other I set for a block size of 150KB and it took about 10 minutes. (P4-3.2, 1GB) All with 10% redundancy.
Any pointers?