Which scan tells the truth?

vbimport

#1

this is the same disc scanned with 2 different drives, which one is correct? or are they both lying? :confused:


#2

They’re both telling the truth–or at least, how they view the truth. You can see they both generally agree with where digital errors are, while the LiteOn is more picky. You can use this to your advantage: since you know the Samsung is more forgiving, you could know that if it shows a lot of errors, something probably went wrong. If the LiteOn shows a lot of errors, you could see that there was something that wasn’t perfect, but you can still rely on it to tell you when things are and aren’t okay.

Think of it as taking the average of both scans: one says it’s good, the other says it’s merely okay, the disc is probably merely okay. One says it’s good, the other says it’s good, it’s good. One says bad, the other mediocre, the disc is probably questionable. And so on and so forth.


#3

None of us have good enough equipment to do a “real” scan. Don’t tie up all your time scanning each and every disc. Just get some good TY 8X (not value grade) media and all will be good. They will play on everything and last a very long time with proper care.


#4

[QUOTE=G_Ivan Awfulitch;2691617]None of us have good enough equipment to do a “real” scan. Don’t tie up all your time scanning each and every disc. Just get some good TY 8X (not value grade) media and all will be good. They will play on everything and last a very long time with proper care.[/QUOTE]

Well, if you want to be sane… :bigsmile:


#5

scanning kind of becomes an obsession once you start doing it, the scans are fairly close on PIF, but there is a pretty big difference on PI, i’m guessing it’s because some drives can read it better than others?


#6

Option 1: The code required to calculate & report digital error information is probably different from manufacturer to manufacturer, and it’s definitely going to be different for two different generations of chipset. That alone can contribute to differences in reported PIE.

Option 2: Yes, one drive reads better than the other. That would align with people’s opinion that some of Samsung’s drives are the most tolerant you can find when it comes to reading.

Option 3: They might agree more if you try different scanning speeds, like 8x on one, 4x on the other; etc etc.

So many variables go into scanning; you can see where insanity might be a problem. :stuck_out_tongue: