I have many .rxx (.r00,r01..etc), that I have put on dvd to save space on my hdd. But I don't want to delete these files until I am positive that the final iso image that comes out at the end will be exactly identical.
I have done a test in winrar to see if the iso will be extracted without problems. I did 3 tests:
Test #1 - Winrar test with all original files
Test #2 - Winrar test with original .r00 to .r20 replaced with .r00 to .r20 from data dvd i made
Test #3 - With a corrupted .rar file replaced original .rar
Test were done in this order, one after the other. T#1, T#2, T#3, T#1, T#2.
Test #1 took 4mins to complete winrar test. Test #2 took 6mins to complete winrar test. Test #3 started with a error crc for the .rar.
Now my questions are:
1) Can this time difference in any way mean that the iso image, will come out damaged (even by smallest difference)?
2) Does a winrar test mean 100% that the iso image will come out how it was meant to come out?
3) Is it possible for winrar to extract a bad iso image (when it's a perfect iso). or if it's going to be a bad iso, 100% positive that it will warn you by telling you which file will affect it, so that it can be replaced?
(by the way, winrar does not take up my ram)
Test #2 - Winrar test with original .r00 to .r20 replaced with .r00 to .r20 from data dvd i made
This one took 6 minutes? Were the .r00 to .r20 files being read from the DVD? If so that would explain the time difference. DVD drives are slower than hard drives.
Test #3 - With a corrupted .rar file replaced original .rar
This one failed at once? Shows that the check can pick up a corrupted file.
1) Can this time difference in any way mean that the iso image, will come out damaged (even by smallest difference)?
Probably not.
2) Does a winrar test mean 100% that the iso image will come out how it was meant to come out?
It means that the test found none of the problems that it was designed to find.
3) Is it possible for winrar to extract a bad iso image (when it's a perfect iso). or if it's going to be a bad iso, 100% positive that it will warn you by telling you which file will affect it, so that it can be replaced?
It is possible, but very very unlikely. There is no such thing as 100% certainty. I don't know if one of your RAM chips will have a random error at exactly the same moment that your DVD drive is reading a rar file or your HDD is writing out the extracted data. It probably won't, and that sort of very near certainty is good for most people.
Just a question... why don't you just extract the damn thing, burn it, and see if it works OK?
You sound like an over-anxious individual. Maybe you should learn to relax. Just a thought...
