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Mount Rainier

Posted 03 May 2002 16:19 CET by G@M3FR3@K


 

Mt. Rainier Logo Since a couple of months now a new CD-RW format called Mount Rainier (CD-MRW) has been introduced to make the usage of CD-ReWritable discs a lot easier. This format has been mentioned a couple of times now on our site when we reviewed the Mitsumi CR-480ATE and the TEAC CD-W540E for example.

In this article we want to go a little bit deeper into what Mt. Rainier means exactly and what its advantages are. We also want to show you some tests comparing the two mentioned Mitsumi and TEAC writers that natively support this format. First let's start with a brief introduction covering the most basic questions regarding Mt. Rainier:

What is Mt. Rainier?:

The 'official' Mt. Rainier definition as mentioned on the Mt. Rainier website is as follows:

"..Mount Rainier enables native OS support of data storage on CD-RW. This makes the technology far easier to use and allows the replacement of the floppy. This is done by having defect management in the drive, by making the drive 2k addressable, by using background formatting, and by standardizing both command set and physical layout. The new standard is promoted by Compaq, Microsoft, Philips, and Sony and is supported by over 40 industry leaders: OS vendors, PC-OEM's, ISV's, chip makers, and media makers.."

The idea with the Mt. Rainier format is to enable native operating system (OS) support of CD-RW drives and background formatting. This will ensure greater compatibility, eliminate users' dependence on proprietary read drivers, and make the technology easier to use.

What are the main benefits?:

The most important advantage is the ease of use of this new format. It is of course already possible to 'drag & drop' files on a CD-RW disc using packet writing software but before you can do this, the disc has to be formatted (which takes a lot of time) and you need to have third party software installed to be able to write the discs. With Mt. Rainier it's possible to write and read from a brand new CD-RW disc within one minute, eliminating the formatting delays and the need for third party software.

Unlike conventional CD-RW drives, Mt. Rainier-compliant CD-MRW drives also support defect management. This means that when the program tries to write to a sector on the disc which turns out to be a 'bad' sector, that sector will be hidden and spare sectors will be used instead. So unlike normal packet writing, the error handling is done by the drive itself (hardware) instead of by the software.

Defect Management

2K Adressing:

As briefly mentioned the Mt. Rainier format uses 2k addressing capabilities. Where packet writing requires a block size of 64kb, most data systems are based on 2k or 4k addressing capabilities. Because the Mt. Rainier format also uses this it will allow file-system and caching capabilities to be transparent to the user even though CD-RW media is used.


Spazmogen
CD Freaks Senior Member
Posted on: 05 May 02 08:06
Good article. Was it just me or did this seem a little strange? He used a 700mb cd-rw disc but only got 540mb of formatted space? Isn't that the same space one gets with DirectCD and a 650mb cd-rw ?
0 Agree

guest
No longer with us
Posted on: 05 May 02 11:22
Thanks for the compliment With Ahead's InCD (packet writing) we got a free useable disc space of about 580MB. This is about 30MB more than with Mt. Rainier. A 650MB CD-RW disc will have about 540MB of space with packet writing and 500MB with Mt. Rainier. We think (mind you: think) that this decrease in available space is because of Mt. Rainier's 'Defect Management'. See the picture on the first page for details. If so, the extra space is mostly a benefit, guaranteeing the disc will remain readable even when errors are present on the disc (scratches, smudges, etc), something that's not possible with packet writing.
0 Agree

Mouse
New on Forum
Posted on: 06 May 02 06:02
Can you erase files and folders on the fly with Mt Rainer?
0 Agree

guest
No longer with us
Posted on: 06 May 02 19:41
Quote:
Can you erase files and folders on the fly with Mt Rainer?
Yes. Like mentioned in the article, erasing is done instantly. Just as fast as you would erase a file from your hard disk.
0 Agree

guest
No longer with us
Posted on: 10 May 02 16:45
What about plain CDR? How does that work with CD-MRW? Or will CDR still require third party apps?
0 Agree

guest
No longer with us
Posted on: 11 May 02 13:43
The Mt. Rainier format was and is only intended for CD-RW discs, not CD-R discs...
0 Agree

JLP
CD Freaks Junior Member
Posted on: 15 May 02 15:25
Excellent article. I have some questions: 1: Are there any other software for Mt. Rainer (while we are waiting for native OS support)? 2: Are there any difference between different software (in speed fatures, ...)? 3: How is it with Mt. Rainer in Linux? Is there any softe+ware for its support and is there any planned native Linux support for Mt. Rainer. I hope these questions are not to hard and thanks in advance for answering it.
0 Agree

guest
No longer with us
Posted on: 16 May 02 07:11
1) The only other software I know of is InCD. 2) Yes there are some differences like for instance; InCD CD-MRW writing doesn't work under Windows XP. Speedwise I can say that WriteCD-MRW was a lot faster when formatting the discs. Writing to the discs took about the same time. 3) Sorry I don't know...
0 Agree

guest
No longer with us
Posted on: 20 May 02 00:54
1) i plan buy lite-on LTR 32123s and it dont support this stuff. but it does support incd and directcd-need i care? 2) what is the big deal? i heard this same thing "acts like a floppy etc..." years ago when directcd was out- this seems worse than directcd ps-i dont like roxio...just replace directcd with incd if it matters to you.
0 Agree

silversurfer
CD Freaks Member
Posted on: 28 May 02 12:23
I would like to dump DirectCD along with Roxio itself I favour of Nero's InCD however I would like to know if InCD supports packet writing to CDR's as well CD-RW's, since DirectCD works on both. If the Mt-Rainer format doesn't work on CDR's then DirectCD still remains the best in my view because formatting a CDR using DirectCD is almost an instantaneous process.
0 Agree

vilijem
New on Forum
Posted on: 06 Jun 02 10:59
hm i dont like the sound of that, how will we copy the cds if this stupid sytem develops
0 Agree

maalth
New on Forum
Posted on: 02 Jul 02 15:44
The above article is cool; but I do have one problem. The Yamaha CRW3200E (24x10x40) DOES support Mt. Rainer (firmware 1.0d)
0 Agree

guest
No longer with us
Posted on: 03 Jul 02 02:18
I have a CRW2200E of Sep '01 mfg updated to FW 1.0e. Nero 5.5.8.2 reports in Recorder Info "Mount Rainer: Supported". Is this correct? Does Ahead InCD support CR-MRW writing?
0 Agree

demeester_roel
New on Forum
Posted on: 28 Jul 03 13:12
Then strange thing is that Philips and Sony both haven't launched their MRW-capable drives. Altough that they exist! Why? Because I was in the moutn rainier software group up till mid 2000, and we already had a workable MRW at that time. Due to Marketing decisions (or should i say incompetence) they let other smaller companies get on the market first. Write now I've bought a LiteOn5224, superb thing, In les than 10 minutes I had a completey written and formatted MRW disk. Now it's waiting until Microsoft Windows and Linux support MRW natively....
0 Agree

RonCam
New on Forum
Posted on: 27 Sep 07 11:55
Better late than never, and the thread's still open ... :d The conclusion: ... we wondered what the big advantage was over normal packet writing. Well we can now say: speed. After reading the Mount Rainier specs, about the firmware error checking and mapping/replacement of defective areas ... I would have guessed "reliability." Why wasn't this mentioned? Does Dennis think ordinary packet writing and Mount Rainier are about even in this respect? For me, with a writable/rewritable optical disc, anything that increases reliability would go to the top.
This message was edited at: 27-09-2007 13:59
0 Agree

vudinh
New on Forum
Posted on: 13 Oct 08 07:12
Can you tell me where i can download Mount Rainier spes? Thanks verry much
0 Agree

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