Fall 2004 DVDR Roundup: Dual Layer and 16X DVD+R
by Anand Shimpi & Virginia Lee on November 1, 2004 12:05 AM EST- Posted in
- Storage
Write Quality Tests MCC 004
We read the 16X MCC 004 media in our Plextor drive with Q-Tools to check for errors that the various burners may have written. Again, only these drives were able to write to the 16X media properly for the PX712A to read.As we described in our second section, PO errors are the ones to look for when testing certain types of discs with burners. These errors can render a disc unreadable and should be minded if they exist in the double digits or even too often in a small area for them to be corrected. The media written with the four drives that we were able to read with Q-Tools were virtually PO error free.
Shown below are the results for those drives that were capable of writing to MCC 004 16X media successfully.
It is obvious that there were no problems writing readable discs with the Sony, LG, Pioneer, and Nu Tech drives.
PI errors are not as ruthless as PO errors. For example, though Q-Tools has read 404,647 errors on the MCC 004 media written with the 710A, it doesn't mean that the disc is completely bad. Most of these errors were found towards the end of the disc, but data can still be read off that portion of the media.
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The screenshots above show that the DRU-710A has performed a successful write, but the read back on the Sony unit towards the end of the disc was a bit shaky. We mentioned earlier how media is prone to warping on the outer portions and this is where most of the errors can occur. Plextor Q-Tools confirms that by detecting over 400,000 PI errors within the last 1GB or so written to the MCC 004 disc. Take a look at the graphs from LG's GSA-4160B...
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Again, about 99.9% of the PI errors are at the end of the disc. The Nero screenshots show nothing in terms of trouble with writing or reading from the disc on the LG drive, mainly because it was able to correct these errors with ease.
The DW1620 and DVR-108D have done a better job at writing to the media with 6052 and 5614 PI errors respectively. We're disappointed that the other drives could not write to the MCC 004 media or could not be read with Q-Tools like the burn LiteOn's SOHW-1633S performed.
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Maverick215 - Monday, November 1, 2004 - link
1) where are the 8x disc quality tests, it seems you only did -r, 16x, and DL2) who cares about DL at $10 a disc I have to quote you, "read/write capabilities are not really useful in applications for the common end user."
3) who cares about 16x
a)it's not readily available
b) will likely be more expensive when it is
c) no realized speed improvement (your review states 11.9x max for 16x and 11.88 max for 8x media @ 12x (again we don't know the burn quality of this 8x@12 burn but you gave the result)
given these I'd have to say "read/write capabilities are not really useful in applications for the common end user." again.
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And to just take one drive here, the benq, you used a BETA firmware, it might be fair if you used a BETA of a upcoming release, but you used a BETA that is 3 public releases and atleast 5 weeks old. you consider NEC more mature, why not give Benq etc a chance to mature? At the very least you could say all burners were updated as of xyz date, at least we would have a reference point. And we could then understand that infact you started doing this comparison 5 weeks ago.
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That minor point aside. If you really care what is applicable to the "common end user" then why not more 8x media with the price of said media and then that media's burn quality tests(16x has a use here in comparing burn quality). 8x is what's most readily available, 8x@12x is comparable burn speed to 16x.
Sorry but this review just leaves me with an empty feeling. Perhaps I am alone in my opinion, but I can live with that.
Reflex - Monday, November 1, 2004 - link
Nice to know I made the right choice a month and a half ago when I grabbed the 3500A. It wasn't anything more than me looking for a bargain for a Media Center PC, so I just lucked into the best drive it appears.BTW, where do you find the latest firmware for this stuff? And are there any good reccomendations on softare, seeing as OEM drives don't come with it usually...
AkumaX - Monday, November 1, 2004 - link
don't really care about speed, but which burner has the best COMPATIBILITY and RELIABILITY in terms of burning? the 108D or the 3500A or something else?mkruer - Monday, November 1, 2004 - link
So I take it DVD+R/RW won the format wars. BTW that would be a good article in itself. Why IS there a difference between the two formats (that’s -R vs +R)KristopherKubicki - Monday, November 1, 2004 - link
Most of the drives we reviewed are the OEM versions - they pretty much all look identical (flat, beige/black, one button).Kristopher
PuravSanghani - Monday, November 1, 2004 - link
OCedHrt: Errors have been fixed for your viewing pleasure :)Operandi - Monday, November 1, 2004 - link
xsilver: If the drive is a re-badge then just say so in the artical, I don't think a picture is required.My point is simply that if your going get pics of the drives you should be taking pics of the portion people will be looking at. Other pics are fine but not geing bezel shoots dosn't make any sense to me.
OCedHrt - Monday, November 1, 2004 - link
Hmm dunno how to edit. The CD-R write speed for the Pioneer between the graph and the table at the end is also different.OCedHrt - Monday, November 1, 2004 - link
The description for the Ritek G05 read test doesn't match the graph at all. One of them is wrong.xsilver - Monday, November 1, 2004 - link
I think the circuit pcb thing is a good idea -- some drives a just rebadges of other drives? (asus?) so to tell you look that the pcb / insides