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Memorex 52/24/52 CD-RW Quickie Preview

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Memorex 52/24/52 CD-RW Quickie Preview

Postby Ian on Thu Jan 01, 1970 5:54 am

Here's a little preview to give you an idea of what to expect from Memorex's new 52x writer.

Here's a picture of the front. It's obviously a Lite-On if you couldn't tell.

Image

How about a Nero screenshot? Yep, 6WS2 firmware. Only a 2048KB buffer too.

Image

InfoTool. And yes, the drive supports Mt. Rainier.

Image

How about some CD Speed graphs? First the drive writing using some Verbatim 48x media:

Image

Check out those RPM's. The thing starts writing at 23x and spins at about 11,000 RPM. Not quite a 40x average writing speed though.

How about rewriting? It uses CAV like the TDK veloCD 48x.

Image

And then reading. The seek times are similar to the other Lite-On based drives. The CPU usage is also a little on the high side like Lite-On's 48x writers.

Image

Thats it for now. I'll be doing more tests later. If there's something you'd like to know (other than whether or not the drive can copy games), let me know.

If you're planning on linking to or using these pictures elsewhere and using our bandwidth, I'd prefer that you didn't. Please link back to this page instead.
Last edited by Ian on Sat Nov 30, 2002 7:52 am, edited 1 time in total.
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Postby Ian on Thu Jan 01, 1970 5:54 am

Oh yeah, the drive was able to write 650MB in about 2:25. The fastest 48x writer we've tested (TDK veloCD 48x) took about 2:36. So you're seeing a performance increase of about 11 seconds.
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Postby Ian on Thu Jan 01, 1970 5:54 am

Here's the firmware. You can download it here.

Once again, link back to this page. That firmware download link isn't permanent. I'll probably find a new home for it tomorrow.
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Re: Memorex 52/24/52 CD-RW Quickie Preview

Postby seanmcgpa on Thu Jan 01, 1970 5:54 am

Thanks for the info.

I was successfully able to take my Memorex 48x24x48 -> 52x24x52.

I had flashed my rom to a Lite-On LTR-48246S ... now it's based on your 52x firmware.

I don't have 24 speed CDRW, but I got readings nearly identical to yours (including the high cpu use). I was able to burn a 52x disc in about 14 seconds faster than the 48x (no big deal, but it's cool!)
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Re: Memorex 52/24/52 CD-RW Quickie Preview

Postby Robotnik on Thu Jan 01, 1970 5:54 am

seanmcgpa wrote:Thanks for the info.

I was successfully able to take my Memorex 48x24x48 -> 52x24x52.

I had flashed my rom to a Lite-On LTR-48246S ... now it's based on your 52x firmware.

I don't have 24 speed CDRW, but I got readings nearly identical to yours (including the high cpu use). I was able to burn a 52x disc in about 14 seconds faster than the 48x (no big deal, but it's cool!)



Someone please try this with an LTR-48126S too! I really want a 52X drive, and the 48/12/48 LiteOn is the only 6S chipset drive I see listed locally. :cry:
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Postby Spazmogen on Thu Jan 01, 1970 5:54 am

Ian:

Thanks for the quickie preview.

This drives lives up to my expectations and is now the front runner to replace my 16x LG in 5 or 6 weeks.
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Re: Memorex 52/24/52 CD-RW Quickie Preview

Postby Harrier on Thu Jan 01, 1970 5:55 am

Ian wrote:Here's a little preview to give you an idea of what to expect from Memorex's new 52x writer.


1) How about some CD Speed graphs? First the drive writing using some Verbatim 48x media:

Image

Check out those RPM's. The thing starts writing at 23x and spins at about 11,000 RPM. Not quite a 40x average writing speed though.

2) How about rewriting? It uses CAV like the TDK veloCD 48x.

Image


1) In what speed was the Verbatim written (40/48/52)??

2) Uses CAV or P-CAV?
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Postby Ian on Thu Jan 01, 1970 5:55 am

1. It's pretty obvious that its writing at 52x. Check the ending speed.

2. I dunno why it says P-CAV. The drive is using CAV in the graph.
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Postby Harrier on Thu Jan 01, 1970 5:55 am

Ian wrote:1. It's pretty obvious that its writing at 52x. Check the ending speed.

2. I dunno why it says P-CAV. The drive is using CAV in the graph.


soo.. they're just saying it's P-cav... not very nice.
what other writing speeds does it have?
Last edited by Harrier on Mon Oct 14, 2002 3:08 pm, edited 1 time in total.
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Postby Ian on Thu Jan 01, 1970 5:55 am

Harrier, lemme get back to you on that.
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Postby eliminator on Thu Jan 01, 1970 5:55 am

Ian - Thanks for all the info !

Did you flash it to Lite-On 52x fware yourself ?
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Postby Kennyshin on Thu Jan 01, 1970 5:57 am

Firmware v6WS2 for Memorex 52/24/52


http://dyzan.myftp.org/network/liteon/f ... x/6WS2.exe
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Postby Ian on Thu Jan 01, 1970 5:57 am

Kennyshin wrote:Firmware v6WS2 for Memorex 52/24/52


Yeah.. its the same binary I posted here, except repackaged. Please post the link directly, not to another website.
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Postby nealh on Thu Jan 01, 1970 5:57 am

How is the write quality at 52x speeds..are there damaged sectors with Nero CD Speed scandisc???
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Postby vinnie97 on Thu Jan 01, 1970 5:58 am

Eliminator, some ppl have reported success making the conversion from the Lite-On 48246S to the Memorex 52X/24X/52X on this page:

http://club.cdfreaks.com/showthread.php ... adid=55882

It seems Lite-on is still holding onto their official firmware. I'm tempted to flash my Lite-on-flashed TDK to a Memorex drive for fun. :D
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Postby eliminator on Thu Jan 01, 1970 5:58 am

I'l flash the Mrex to a liteon fware as soon as I get one in 52 ! :wink:
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Postby stevem on Thu Jan 01, 1970 5:58 am

@Ian

Could you confirm which MTK chipset is used?
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Postby coolestnitish on Thu Jan 01, 1970 5:59 am

I am going to be buying a new burner soon. I was thinking should I wait for the Lite-ON 52x or the 48x is good enough. (good thing liteon's come fast to canada) I have read rumours on the net that 52x burners will create more errors than 48x. :-?
by the way you said this was using cav writing. well does it use p-cav till 40x? and then 48x and 52x at cav or the whole thing is using cav?
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Postby Ian on Thu Jan 01, 1970 5:59 am

stevem wrote:@Ian

Could you confirm which MTK chipset is used?


Oops.. thought you were asking whether or not it was using a MTK chipset. Not sure which one.
Last edited by Ian on Wed Oct 16, 2002 2:39 pm, edited 1 time in total.
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Postby Spazmogen on Thu Jan 01, 1970 5:59 am

Lite-On 52x firmware has been extracted from a drive and is available here:
http://www.alexander-noe.de/Firmwares/L ... index.html

That's Alexnoe's web page, he's a mod over at CD Freaks.

They had a user created contest to see who could extract the firmware 1st. They truely are crazy. But it's been tested here: http://club.cdfreaks.com/showthread.php ... adid=56128 and it seems to work. :D

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Postby eliminator on Thu Jan 01, 1970 6:00 am

coolestnitish wrote:I am going to be buying a new burner soon. I was thinking should I wait for the Lite-ON 52x or the 48x is good enough. (good thing liteon's come fast to canada) I have read rumours on the net that 52x burners will create more errors than 48x. :-?
by the way you said this was using cav writing. well does it use p-cav till 40x? and then 48x and 52x at cav or the whole thing is using cav?



The whole thing is using cav...
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Postby eliminator on Thu Jan 01, 1970 6:00 am

OK, here's another link.. http://liteon.notrix.net/

Now we have 2 fwares - Spaz, do you know the difference ?? :-?
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Postby Spazmogen on Thu Jan 01, 1970 6:00 am

Nope. The 1st (6S01) is a new one for me.

I e-mailed Ian the 6S02.ace earlier today to try out.
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Postby eliminator on Thu Jan 01, 1970 6:00 am

guess I'll just try the ace file here... :-?
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Postby coolestnitish on Thu Jan 01, 1970 6:00 am

Elim, you said the drive is using cav for all speeds. P-CAV is better than CAV isnt it? Then why did they get rid of it on speeds like 40x?
Liteon's 48x drive uses 48x (CAV) 40x, 32x, 24x (P-CAV)
16x, 12x, 8x, 4x (CLV). and the difference between the 52x is only of 4x (a couple of seconds faster).
P-CAV being better, when i go out to buy a burner soon, why should I go for the 52x?
Another dumb question (sorry) : What in the world is Half-Height Internal Design which this new LiteON 52x is supposed to have?? :-? :oops:
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