Anonymous Δημοσ. 27 Φεβρουαρίου 2003 Δημοσ. 27 Φεβρουαρίου 2003 http://mozcom.com/~sknkwrks/gdcontroller.html SEGA DREAMCAST GD-ROM CONTROLLER (OTI-9220) The Sega Dreamcast GD-ROM system utilizes Oak Technology's OTI-9220 CD-ROM controller which is a single chip integration of Sony's "CXD-3005R" DSP/Servo control and Oak Technology's "OTI-912" CD-ROM decoder. So what does this mean? Sega had their "proprietary" GD-ROM system designed to use media with 2 times the capacity of CD-ROM discs, but with off-the-shelf CD-ROM components, and may have used a technique of running the spindle motor at half the speed required for CD-ROM's in reading 2x density GD-ROM discs-- tricking the pickup into believing it's reading off data from a CD-ROM disc at "x" (CAV) spindle rpm when it is actually reading a GD-ROM disc at "y" spindle rpm (x divided by 2=y). With same data read rates as with a CD-ROM disc running at twice it's rpm, the optical head, focus servo controls, signal processors, etc etc. aren't aware it's actually reading data off from a larger capacity medium. In other words, the GD-ROM disc is nothing more than a "passively accelerated" (tightly packed) CD-ROM disc, "decelerated" to emulate a CD-ROM by running the spindle motor at half the rpm! ..............
paravatis Δημοσ. 1 Μαρτίου 2003 Δημοσ. 1 Μαρτίου 2003 old news re paidia.... afto to syzitousa me kati paidia apo kalisto kai mou to 'xan pei kai malista mou eixe kanei kai tromeri entyposi...
Anonymous Δημοσ. 2 Μαρτίου 2003 Μέλος Δημοσ. 2 Μαρτίου 2003 fantazomai paravati oti tha xereis kai ayto tote : http://www.hostultra.com/~shenmuetb/gdrom/Gd_rom.htm ------------------------------------------------------------ Welcome to The Quest For: GD-ROM Support a little collection of files to go with it. This is a page I have made to help the emulator icarus, the finest (And no I don't have a copy) emulator around (Yet to be released tho). It plays commercial games although at the moment only iso/bin images dumped from the dreamcast to the pc via serial connection. This creates a problem, it can encourage picracy through massive 1GB+ downloads also means a lot of hard drive space and some extra equipment. But there is yet hope, I (Life_247) have started my quest for its pc support: Got anymore info or storys please don't hesitate to email me. Files: *Update* Some minor success today as I copy the gri_pan.dll to the Windows\system and system32 folders. Good for those with a Cd drive bad for those with a DVD drive. Also if you look on the inner strip of the GD-ROM of Shenmue 1 its sayes this, "MK-51059-034755 EMI CD HOLLAND". Hmmm CD? ah yes so the GD-rom must be a modified or specailly burnt cd right?
Anonymous Δημοσ. 2 Μαρτίου 2003 Μέλος Δημοσ. 2 Μαρτίου 2003 kai kapoies fimes??? poy asfalos episis tha gnorizeis ----------------------------------------------------------- Example 1: A little file on how to pirate those little DC games off kazaa BRIEF HISTORY LESSON:- When Sega Were Developing The Dreamcast, They Needed A New Kind Of Storage Medium. They Chose Yamaha To Come Up With The Drive And Disc. Yamaha Chose The CD Format For Many Reason'z: 1.)It Proved To Be Very Popular With Consumer'z ie:PLAYSTATION 2.)It Is Very Inexpensive To Make A CD And Package It 3.)It Give'z Developer'z Huge Amount'z Of Space To Play Around With But There Is A Problem, CD'z Can Be Copied Very Easily. That'z Why Yamaha Chose To Make It A 1GigaByte Disc, So That People Like You And I Could Not Copy Them. We All Know That A Standard CD-Recordable Can Hold Between 650-680 MegaByte'z Of Recorded Data. As Stupid As SEGA Are They Agreed To Use Yamaha'z New CD Medium For This Reason.Little Did SEGA Japan Know That Yamaha Had Teamed Up Some Time Back With A Software Group Called CeQuadrat To Release A Software Bundle With Every New Yamaha CD-Writer. The Thing Is That CeQuadrat Had Also Found A Way Of Storing 1Gbyte+ On A Standard Disc Using Some Type Of New Writing Method, Which Could Be Deployed By Most Yamaha Writer'z. So If Dreamcast Uses A 1Gbyte Disc For It'z Drive, And Yamaha Writer'z Can Now Write 1Gbyte+, Then Surely We Have Won. CRUCIAL INFO YOU NEED TO KNOW:- --------------------------------------------------------------- >> Detailed Info On PacketCD 3.0+ << Basic Info On CeQuadrat PacketCD 3.0 CeQuadrat Announces PacketCD 3.0 Aachen/Palo Alto, March 10, 1998 CeQuadrat's new Packet Writing solution doubles the capacitiy of CD-R/RW CeQuadrat today announced a new version of its UDF packet writing software "PacketCD". The most important feature of this new version is transparent, real-time data compression and de-compression, yielding in more capacity and higher transfer speeds for packet writing. Using a very fast compression algorithm, more data can be transfered to the CD-Recorder, virtually transforming a 2x CD recorder into a 4x drive. PacketCD 3.0 will also double the capacity of a CD-R or a CD-RW to more than 1 GB. CDs written with PacketCD 3.0 can be read back in any Windows 95 system*, using the CeQuadrat driver** which is provided on every CD written and finalised with PacketCD. About PacketCD PacketCD provides easy and safe drive letter access to CD-R or CD-RW media. Using incremental packet writing PacketCD saves users from dreaded "Buffer underrun" errors, and works completely in the background: A CD-Recorder looks and works just like any other removable medium. On CD-RW media, files can be individually erased, and a sophisticated defect management prevents from loss of data when being written to damaged sectors. PacketCD uses the industry wide accepted OSTA UDF (Universal Disc Format) file system standard, which is also used for DVD. The UDF file system is an integral part of new operating systems, such as Windows 98* and Mac OS 8. For information on CeQuadrat's entire line of products please visit our web site at www.cequadrat.com or call (650)843-3780. © 1998 by CeQuadrat GmbH/CeQuadrat (USA), Inc. All rights reserved. CuBiCo Note:- * Windows CE Compatible, Via Patch. ** MANY Group'z Out There Are Competent Enough To Port This To Windows CE? --------------------------------------------------------------- WHAT DO I NEED?:- First Of All You Will Need A CD-Writer That Is Equivalent To A Yamaha 400At Or Above. -Easily Obtainable. Second You Will Need A Copy Of CeQuadrat's Latest PacketCD Software. -That Was The Catch! Here Is The Only Reference I'll Give You - I Have My Reason'z! http://www.cequadrat.com ----------------------------------------------------------
paravatis Δημοσ. 2 Μαρτίου 2003 Δημοσ. 2 Μαρτίου 2003 olo to s/w to eixa alla den eimoun pote se group. itan apla o aderfos enos proin kollitou mou otan spoudaze agglia kai eixe akoma kai to developer's h/w pou epetrepe ti metafora dedomenon apo to dc sto pc(olou tou gd-rom) kai meta me kapoies tropopoiiseis to ekanes cdr. eixan kykloforisei kai merika tuts tote sxetika me to pos na to kaneis alla eprepe na vreis to h/w... <img src="http://www.insomnia.gr/ubbthreads/images/graemlins/wink.gif" alt="" /> PS epeidi diakrino ena yfos eironias kai de mou aresei na symvainei kati tetoio tha ithela aplos na toniso to eksis: den eipa, oute ypostiriksa, oti eimoun pote se group pou evgaze paixnidia tou dc se cdr. opos proeipa ETYXE o aderfos enos proin kollitou mou na spoudazei agglia kai na einai melos tou kalisto(opoios asxoloutan tha to iksere <img src="http://www.insomnia.gr/ubbthreads/images/graemlins/wink.gif" alt="" /> ) PS2 to PacketCD to exo afthentiko apo ti CeQuadrat kai to xrisimopoiousa me to proto mou recorder(Philips PCA460RW 4X4X16X) to opoio ousiastika kataskevaze i yamaha. malista tou eixa perasei kai to firmware tou yamaha giati eixe pio syxna updates <img src="http://www.insomnia.gr/ubbthreads/images/graemlins/wink.gif" alt="" /> Pistepste me: katholou aksipisto s/w eia xasei polles fores data apo cdrw <img src="http://www.insomnia.gr/ubbthreads/images/graemlins/frown.gif" alt="" />
Anonymous Δημοσ. 2 Μαρτίου 2003 Μέλος Δημοσ. 2 Μαρτίου 2003 den mporo na po oti to sxolio-old news perase -etsi , alla sto kato kato oyte dreamcast expert eimai ,kai girasko aei didaskomenos ,apla epaniltha drimiteros ... synithos stin eironeia apantao me humor /kai para polly spania eironevomai .... pantos akoma kai an perieixe kapoia eironeia ta reply moy den tha itan dikaiologimeni meta tin kapoia (adikaiologita) epikritiki stasi stis apantiseis sou se dyo topic mou (xbox =legacy free pc) opos kai se ayto edo mesa se 15 meres kai xoris allo logo apo oso xero ????? YG o ioylianos (o paravatis) apo ton opoio ypotheto empnestikes to nick sou apotelei ena apo ta poio prosfili se mena istorika prosopa kai ena apo ta poio katasykofantimena (ouai tois ittimenois).
paravatis Δημοσ. 2 Μαρτίου 2003 Δημοσ. 2 Μαρτίου 2003 file nemo sorry. ego se kammia periptosi den ithela na so prosvalo/thokso se kanena apo ta 2 posts sou... apla, epeidi se afto to forum eixe ginei xamos otan eixe protovgei to boot cd gia to dc kai ta synafi, kai oloi psaxnontousan, theorisa dedomeno oti kati tetoio einai gnosto.... oson afora to allo post sou, apla variomoun na to diavao re c ekeini ti mera kai gi'afto eipa mipos kapoios to eixe diavasei gia na dosei o zoumi... <img src="http://www.insomnia.gr/ubbthreads/images/graemlins/wink.gif" alt="" /> sorry pantos... <img src="http://www.insomnia.gr/ubbthreads/images/graemlins/smile.gif" alt="" />
Anonymous Δημοσ. 2 Μαρτίου 2003 Μέλος Δημοσ. 2 Μαρτίου 2003 kanena provlima ,oli i fasaria ginete opos kai to xethapsimo old news prokeimenou to dreamcast emulation to opoio exei kanei entyposiaka vimata na proxorisei akoma perissotero kai na xeperasei to skopelo pou legete diavasma gdrom apo cd /dvd se pc des edo ..... http://icarus.boob.co.uk/
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