Low quality Philips 48x CDR?

[gq]

I bought a 50 pack Philips 48x cdr disk (Made by CMC) a few weeks back in Compusa. and I have a lot problems with them. After burning the disk, CD Speed reports most of them have more than 3% damages, and I have problem reading a few of them. I tried them on a 16x Teac and a 24x lite-on cdr drive, and the result is similar. I also have some 40x Philips cdr disks and those disks seems to work fine. The 48x disks have the number “5128GI033LHxxxxA2” (xxxx = some number) on them and some of them have very rough edges, Am I being unlucky or Philips 48x cdrs are bad quality?

[sonyman]

Philips 48X CDRs are sh** when it comes to quality.

-Scott

[Rudy]

I do not have the Philips cd-r but I bought PHILIPS DVD+R from Compusa. All Philips DVD are coasters. Very bad media. I repeat process with Fuji or Memorex and they produce succesful discs. Your post does not surprise me. I will stick to Fuji and Memorex for DVD and Fuji for CD-R.

[Ian]

Philips 48X CDRs are sh** when it comes to quality.

-Scott

I have to agree. The 48x CMC discs from Philips and TDK are some of the worst CMC discs I've ever used. Total crap. No matter what drive I use to burn them, the number of C1 errors is very high.

[rdgrimes]

The 48x CMC discs from Philips and TDK are some of the worst CMC discs I've ever used

Here's a couple discs I tested a while back. they have the same ATIP. CMC must work really hard to create such widely variable quality. These were read in my LTR-52246S. All the Phillips 48x I've tested are nearly unreadable when burned at 48x. The Imation 48x that I have are working very well, much like the TDK, but I only use them for testing.

[Gary Kokkin]

CMC is "B'class" production factory .Trade marks made discs there,are to sold in poor consumer markets...so if you pay in bargain price you probably get similar product...

[cfitz]

CMC must work really hard to create such widely variable quality.

I agree. I've had good success with some CMC discs, terrible results with others. The quality really is all over the place. I don't know if this is poor quality control or if CMC has a number of different process variations with different cost/quality combinations, and lets the companies who brand and resell the discs choose the price-point/quality level combination that suits those resellers best. I tend to suspect the latter, since the quality does seem to correlate to the reseller brand (e.g. Philips bad, Imation good).

cfitz

P.S. Yaayyy CD Doctor!

[rdgrimes]

P.S. Yaayyy CD Doctor!

BTW, I'm wondering if those gaps in the CDD graph are the same glitch that you see in CDSpeed when you multitask. IE: opening another process makes a gap in the graph.

[cfitz]

BTW, I'm wondering if those gaps in the CDD graph are the same glitch that you see in CDSpeed when you multitask. IE: opening another process makes a gap in the graph.

I wasn't aware that CD Speed shows gaps when one multitasks. But, then again, I run CD Speed on a dual-processor machine, so it may be more resistant to the gapping you describe. If I get a chance sometime I will try on a single processor box.

cfitz

[rdgrimes]

CDSpeed, "Quality Check", in the green speed line, there's little blips if you multitask during the test. I have a AMD 1800XP Thus:



I've seen this in a lot of user tests.

[cfitz]

It does look like the same sort of thing, doesn't it?

cfitz

[rdgrimes]

I am unable to reproduce the gaps in CDDr with the same multitasking that causes the blips in CDSpeed. It ocurred to me that maybe it was HD access that caused it, but again I was unable to produce gaps by accessing a HD on the same IDE channel as the burner during the test.
for now, it remains a mystery. But for CDSpeed, it's clearly reproducable, who know if it's the CPU use or HD access that causes it.

[jase]

CMC is "B'class" production factory .Trade marks made discs there,are to sold in poor consumer markets...so if you pay in bargain price you probably get similar product...

I heard a similar thing... although Philips are selling these CMC discs in the UK through major chains at full price ... so if Britain is classed as a "poor consumer market" by Philips I'm slightly offended by that!!!

In my experience CMC discs are invariably poor quality. If you get good ones you're lucky. Imation CMC discs write well enough but the top surface peels and turns brown after a while and data is lost.

Unfortunately, just lately it seems that both Prodisc and Ritek are going the same way. I think media has just got too cheap now and we're all suffering as a result