FAQ ( Vers. 0.1.3 - 23.06.2007 21.47 h )
A first quality measurement on a CD.
A first quality measurement on a DVD
How can I interpret the scan results?
Why do I have to select cdrdao for burning with QPxTool settings?
How can I burn a GigaRec disc?
How can I use DVD+R(W) Simulation Mode?
How to create an AutoStrategy Database entry?
How can I update the Plextor firmware with pxfw?
Where can I look for terms that I don't know?
The glossar should explain all terms that you need to know. You will find the terms in alphabetical order.
With QPxTool you can measure the quality of CDs and DVDs, if your hardware supports these features (supported drives). Further you can take full advantage of the special Plextor writing features (like GigaRec, VariRec, PowerRec, AutoStrategy).
What can I measure with QPxTool?
These quality measurements are possible:
On a CD you can:
On a DVD you can:
A first quality measurement on CD.
O.K., let's make a first CD quality scan:
A first quality measurement on DVD.
O.K., let's make a first DVD quality scan:
How can I interpret the scan results?
| PIE / PIF interpetation | |
| The fewer errors there are, the lower the highest error value is and the more evenly the errors are distributed, the better is the result. A few isolated PIF spikes higher than 4 are usually no problem and can be ignored, however, good PIE results do not even come close to 280. | |
| Here we see a good scan | This one is not so good. many errors from the middle to the end Writing Speed should be reduced. |
| Beta / Jitter interpetation | |
| A Beta scan (red) result is good if there are no stair-case shaped jumps. Also, the beta graph should stay between -5% and +15% (for DVDs) and between -8% and +8% for CDs. However, staircase like jumps are more problematic than beta values outside the given range. Jitter Scan (green) should also show no stair cases. | |
| This one is getting better and better | A nightmare |
| TA interpetation | |
| A TA test result is better when the peaks are more clearly seperated from each other. Also, the peaks should have their maximum each one on its black line. However, this is not yet automaticall. | |
Why do I have to select cdrdao for CD burning with QPxTool settings?
The QPxTool settings will only keep alive if you use cdrdao as your burning application. cdrecord overwrites the QPxTool settings by default. Jörg Schilling is not interested to give us an interface, so that QPxTool can work with cdrecord: "just tell cdrecord what it should do, no other tools are necessary". Seems that someone is not completely informed about what Plextor drives are capable of.
How can I burn a GigaRec disc?
Now we write a CD-DA with GigaRec value 0.9. This should increase the compatibility, the quality and the expected live time of the data.
How can I use DVD+R(W) Simulation Mode?
This is the way to use the DVD+R(W) Simulation Mode:
How to create an AutoStrategy Database entry?
With PX-755 and PX-760 you directly go to Plextor Tab and select create Strategy in the AutoStrategy DataBase dialog. PX-716 automatically creates a database entry, if you write the third time on the same brand of blank and if media code does not exists in FW database.
How can I update the Plextor firmware with pxfw?