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#16
04-08-2003, 12:07
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No booze...
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 But one must remember to giev the BWA file the same name as the BWT image & place it in the same folder... Have U tried again backing up BF1942 (safedisk 2.8) using BW with your Liteon (4 trial & error any blank CD-RW will suffice)??? Last edited by IceBreaker; 04-08-2003 at 12:10. 
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#17
04-08-2003, 12:30
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Not yet...
Not going to, for some reason, my Lite-On CD-RW doesn't detect the CD as the original, but my DVD-ROM does... My friend's CD-ROM detects it as the original CD, and another's guy CD-RW, but not my Lite-On! 
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#18
04-08-2003, 12:41
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Dump it up...
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Affirmative mon ami, that is normal - and I think I know why  You have used Alcohol 120 to dump the BF1942 cd image. As I previously pointed out, although your burner supports reading pregap, Alcohol does NOT implement it (though it supports writing pregap). Ipso facto, your backup does not have the correct pregap. But since the 52246S is able to read the lead-in, the games checks for the correct pregap when you insert backup CD in the 52246S. However if you insert the same backup (or even the original) in another reader that has no full pregap-reading support, the game CANNOT check for pregap and therefore launches, since the developpers of the game wanted the original CD to to work in ALL drive so as to avoid possible refunds - which makes sense, non? Therefore, if U want BF1942 backup to work, U must make a correct dump first (cf. Discjuggler or possibly BW?  )
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#19
04-08-2003, 12:54
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Seems like I know what is going now... Well, going to try BlindWrite But then, how is it that other people created perfect images of BF1942 with Alcohl 120%? Is it ever going to support the pregap thing? I am so confused about all this copying... Its 0s and 1s, used as gaps - why is it so hard to make something that can read 0s and 1s and copy them in the exact same order and position?
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#21
04-08-2003, 13:21
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Some like it RAW
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Unlike RAW writing, which really IS raw (ie. drive writes without bothering about the data it is writing), RAW reading cannot be 100% raw since the reader HAS to "understand" to a small extent what is being read, mainly to tell the difference between real read errors due to scratches etc.. (which can sometimes be corrected by the reader thanks to EFM modulation) and deliberate (C2) errors which must be copied 'as are', without correction. Part of the subchannel data must also be interpreted by the reader (thus not read in RAW fashion), such as sector position on CD - and Tagès scheme makes use of this So U C, the closest on can get real RAW-reading is perhaps by switching off reader's hardware error-correction (if it allows it) - but in doing so, unless you have a CD-ROM in PERFECT state AND you read at 1x, you're bound to end up with a sh*tload of errors in your image file... Last edited by IceBreaker; 04-08-2003 at 14:04.
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#22
04-08-2003, 15:53
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Gr...
OK, the Alcohol 120% thing. I was saying that some people used it and made a perfect 1:1 image with the gap thing or whatever, they used Lite-On CD-RWs... And for the second one - I think they should make a special device that does not have to understand anything, just read and write, maybe it should not even attach to a PC...
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#23
04-08-2003, 17:08
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Of pits & lands
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Dream on Such a device would have to do WITHOUT using EFM redundancy (ie. without internal error correction, or ECC) - and the possibility of there being the slightest spot, let alone scratch, on the surface of a data CD makes EFM encoding, and thus error correction, compulsory to be able to correct the resulting read errors AND distinguish these from C2 (fake) errors, ie. safedisk & co. Besides, even if it were possible to keep a CD perfectly smooth & intact (  ), this device - deprived of ECC - would call on almost "supernatural" accuracy to be able to read every pit & land without making a single mistake!So I'm sorry to say this, but forget it man, it's a forlorn hope - but hey, perhaps YOU could give it a try
Last edited by IceBreaker; 04-08-2003 at 17:16.
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#25
04-08-2003, 17:56
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?
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#26
04-08-2003, 19:28
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I'm stupid, nevermind, and great thanks for help...
I just don't understand... If there is an error in binary data then the whole freaking file/installation or whatever would be screwed, but no, CD-ROMs read data just fine...so....why can't another machine read data and copy it.... How do they do it at factories? I heard they like STAPLE an image onto a CD...
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#27
05-08-2003, 05:21
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afterburners
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As I told U, the reader manages to read data correctly thanks 2 EFM redundancy - data is sort of like "repeated" on the CD, allowing reader's internal error correction to correct the data if the damage is not too great (minor scratches, etc...). However because of the necessity of this error correction AND because of the existence of fake errors part of some copy-protection schemes, 100% RAW reading is impossible, for the reader will HAVE to "understand" to some extent what it is reading - it is inevitable, Mr Anderson... Quote:
CD-Rs have a surface covered with a colored, non-metallic substance In factories, they make CD-ROMs, not CD-Rs. Since CD-ROMs are metallic, they are "etched", or pressed: there are pits & lands, the pits are cut by powerful lasers. But we - the average users - don't have CD-pressers, which are not sold on the market anyways. We use CD-Rs, and our CD-burners burn black marks onto the colored surface of the CD-R. These black pecks simulate a CD-ROM's pit. Besides, unlike factory CD-pressers, our burners' lasers are not strong enough to cut a pit into the metallic surface of a CD-ROM, so it would be pointless to buy blank CD-ROMs, if these were 2 B found on the market... Quote:
Last edited by IceBreaker; 05-08-2003 at 12:58.
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#28
05-08-2003, 07:19
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I still believe that a machine that can build CD-ROMs and CD-Rs perfectly can be made, if you put a good billion bucks in it...
So, if data is being repeated on a CD, then how much REAL space does a CD have? Because when I burn 300Mb file on a CD, it takes up 300Mb .
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#29
05-08-2003, 12:29
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Quote:
Quote:
Quote:
Last edited by IceBreaker; 05-08-2003 at 13:03.
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#30
05-08-2003, 13:21
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Where did you learn all this?
I am sort of getting it... But, will there ever be CD-RWs and software than can copy SecuROM 4.8+ and etc! I am talking 1:1 copy, not workable copy. I don't know, I think if something CAN be read, then it CAN be copied .
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Linear Mode
