CMC Magnetics

soops

Hi. Does anyone know where I could get 50 to 100 pack CD-Rs manufactured by CMC Magnetics in the Toronto (Canada) area? Or a website that would deliver here.

Thanks.

terminalvelocd

Why do you want to buy CMC junk media? My recommendation is that if you have Prodisc, Ritek, Mitsui, or Taiyo Yuden readily available in your local area to buy them because the quality of CMC isn't always up to scratch.

TerminalVeloCD

soops

I bought some Imation ones that were manufactured by CMC and I was happy with the quality. Also, my burner (MSI 48X16X48) supported it at 48x burn, where as with some other brands it only supports till 24x.

The only thing is I couldn't find Imation selling discs in a 50 or 100 pack, only a 20 pack.

rdgrimes

soops
Do yourself a favor and have a look at the media tests. Imation is one of the worst. Always burn media at or below it's rated speed, not what the software or drive says it can burn at.

Jovo

I am very happy with Imation 24x disks made by CMC Magnetics. They have the same ATIP as the TDK Gold disks. On the LTR 52246S they burn effortlessly at a true 52x max and do not have errors. The time to burn 700Mb, including lead in and out is 2:29. Only a second slower than TYs.

This Disc is designed for CD-RW/COMBO Drive Only.
Disc Type, Material = CD-R, Phthalocyanine
ATIP Lead-in = 97m 26s 66f
Norminal Capacity = 702.83MB (79m 59s 74f)
Disc Manufacturer maybe = CMC,Imation
SMART-BURN Speed Limit = 52X

Note: these graphs indicate real burns, not simulations!

rdgrimes

CMC
The issue with CMC/Imation media is not whether ther are sone that may be decent, but that there are many that are not. As they all carry the same ATIP, there's no way to know. Again I refer you to the media tests, you'll a clear demonstration of how unreliable they are. Yet some seem to burn very well. You can buy 2 identical packages off the same shelf, one is good and one is bad, or even some in the package are good while others in the same package are bad. And there are also some questions about the longevity and reliability of the media as well. But the bottom line is that they are just plain unpredictable, as in: very poor quality control.
Here, there is plenty of good quality, reliable media that you can count on to be a good burn every time, so why even mess with CMC?

Jovo

You have made a very valid point rdgrimes. After all the testing I have done recently, I will be sticking to the unbranded Hitachi Maxells (whilst they remain available) for data backups and TYs for audio backup!

The point of doing the tests was to help identify readily available media that writes error free at 52x and can be relied on later. Happily I have identified a number of other brands to revert to if the availabilty of these two changes in the future.

48x media is only just becoming available here, so it could be some time before 52x hits the shelves.

It also pays to keep in mind that some media (eg Laser 40x and Sony 32x) just doesn't like the Liteon 52246S but probably works great in other burners!

rdgrimes

Sony 40x workd very well in all my LiteOn drives, but only at 40x.

cd pirate

CMC....hahaha. these are the crappest cdrs ive ever used and they are everywhere. they always burn fine for me but they always die after a while anyway (little brown damaged spots on the recording layer). so even if you burn it fine they will ALWAYS screw up shortly after. unless you keep them in a jewel case forvever and never use them they are doomed!

if you still want crappy CMC then you can find them sold under the brand name: memorex, imation, emtec, pioneer, Mr data, TDK gold, verbatim DATALIFE. the list keeps going and going so i will leave it there.

WebTech Inc

Just some comments to your list of the brands that are made by CMC:

All Emtec CD-Rs I've seen so far are made in India by Moser Baer.

And Verbatim DataLife can also be Moser Baer (Made in India)
or - to my surprise - Tajyo Yuden (Made in Japan).

Spazmogen

Soops: check your Private Messages.
I sent you one about this.

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JimHom

My experience with CMC on my Lite-On 40125S is as follows:

Imation 24X - poor with 2-6% damage on scandisc test
(burning from 12x-24x)
Imation 40X - good with less than 1% damage burning at 24x-32x
TDK 40X - good with less than 1% burning at 32x-40x
Philips 40X - very good with about 0.11% damage burning at
32x-40x

TDK's and Philips are made by CMC. It seems that CMC can make
fairly decent cdr's and its quality control is improving. Get the
Philips if you want CMC's as they seem to get first pickings.

rdgrimes

If a disc has any errors at all, it's a bit of a stretch to call it "very good". IMHO, the only acceptable media has "0" errors and reads at full speed. Even then, it has to maintain "0" errors over time.

JimHom

Perhaps I should have said using Nero on my Lite-On 40125S,
the Philips 40x was doing as well if not better than what I achieved with my Memorex 32x (TY's) and my Kodak Utima 80
burning at 32x, the latter two I trust for long term archiving.
The CMC's I use for storing movies and mp3's. Note this is
a relatively fair comparison as I am using the same program
(granted it may have gone through at least one update) and
the same burner. If I ran the Imations, Philips, TDK's, Memorex's,
and Kodak's through my old Teac 12x burner I may still get some damaged (though still readable) reports on the 24x Imations. All
the others will report 100% undamaged. Would it be proper to
say that the 40x CMC's are great when all I am saying is CMC is
improving starting with the 40x and the pecking order of quality within CMC is Philips, TDK, and, then, Imation (highest to lowest)?

rdgrimes

I have not been able to discern any relative order between the various CMC-made media. Regardless of the brand on the package, it's unpredicable. The Phillips 40x that i tested had about 8-10 failed discs in a 100ct spindle, (either failed in burning or in reading), while the remainder of the spindle appeared to burn very well. subsequently several of the audio disc I burned from that batch have failed as well. TDK, Imation and Memorex branded CMC media has been much the same for me...it is totally unpredictable.

robertmorewood

I always us CMC media and have had very few issues. I found some of the other makes that are mentioned on this thread to not perform so well on playback in car stereos. The CMC stuff always worked.

cd pirate

Mate, this is a 10 year old thread!

__________________
Best DVD media:

Verbatim MCC002 4x DVD+R
Verbatim MCC02RG20 8x DVD-R
DATASTREAM BRANDED CMC MAG E01 8x DVD+R
Verbatim MCC04 & MCC03RG20 16x DVD +-R

Ritek G05 media =

My writers: BenQ 1620 (thanks to terminalvelocd!), BenQ DW1800 x 2, LG 4167B, LG H22N, Pioneer 106D, Pioneer 109, Pioneer 111L.