Help understanding quality scan

Hello all, I’m not sure how to interpret these scans. Its a Taiyo disc (TYG03) burned on a DVD recorder @ 4x. The DVD writer I used to scan the disc is a Plextor 716 UF.
I attached the scans, SUM 8 and SUM 1 respectively.
Here are the readings:

SUM 8 test
Drive Info ID:0 PLEXTOR DVDR PX-716A V1.09 (#698969)
Test Settings Read Speed: 2X CLV
Test Interval Length: High Accuracy
Test Result Disc Info: RDXS34STU DVD-R, 2932 MB (RDXS34STU) TYG03

        Avg 	Max 	Total 	 

PIE 4.21 71 395143
POF - - 0

Test Duration 0:18:28

SUM 1 test

Drive Info ID:0 PLEXTOR DVDR PX-716A V1.09 (#698969)
Test Settings Read Speed: 5-12X CAV
Test Interval Length: High Accuracy
Test Result Disc Info: RDXS34STU DVD-R, 2932 MB (RDXS34STU) TYG03

Avg 	Max 	Total 	 

PIF 0.01 2 666
POF - - 0

Test Duration 0:18:30

Hi Knash2, welcome to the forum!

Your scans show a good quality burn.

The PIE values in the Sum8 scan should be no higher than 280, and the highest value is 71 so that’s good (but not great).

The PIF values in the Sum1 scan should be no higher than 4, and the highest value is 2 so that’s very good - it’s virtally impossible to get a maximum PIF value lower than 2.

Have a look around in the forum at other peoples results, especially those scanned with a Plextor or LiteOn burner which is easier to compare with your own scans(*). In time your understanding of what constitute good and bad results will get better!

(*) Because PIF are reported per 1 ECC block with both Plextor and LiteOn drives, whereas e.g. BenQ drives report PIF per 8 ECC blocks, and NEC drives report PIF per 1 ECC block or per 8 ECC blocks depending on how the user has configured CDSpeed.