Difference between revisions of "CD BackUp RAM Cart"

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[[Image:segacd_cdbackupramcart.jpg|thumb|right|CD BackUp RAM US box.]]
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{{AccessoryBob
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The '''CD BackUp RAM Cart''' is a [[memory card]] designed for the [[Mega CD]] that plugs into the [[Mega Drive]] cartridge port. For the North American version, the cart resembles a regular Genesis cartridge, aside from a blue edging saying "Sega CD", as opposed to the usual red edging found on standard Genesis cartridges. The unit contains 2045 blocks (1 Mbit) of memory for game saves.  Some RPGs - most notably ''Shining Force CD'' - used this for memory, as there was often not enough space for the save files in the internal backup RAM. In the case of ''Shining Force CD'', this cartridge allows the player to unlock the last story segment of the game, inaccessible without the backup cart due to the Sega CD's internal memory limitations.
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| accessoryimage=BackupRAM MCD US Cart.jpg
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| accessoryprogramscreen=
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| title=
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| maker=[[Sega]]
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| type=Memory card
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| madefor=[[Sega Mega-CD]]
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| releases={{releasesMCD
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| mcd_date_jp=1992-03-20{{ref|https://web.archive.org/web/20140804015513/http://sega.jp/fb/segahard/mcd/backup.html}}
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| mcd_code_jp=G-2920
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| mcd_rrp_jp=6,300
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| mcd_date_us=1994-10{{magref|sonictimes|0209|8}}
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| mcd_rrp_us=59.99{{magref|gamepro|73|110}}
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}}
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}}
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{{stub}}'''''{{PAGENAME}}''''' or '''Backup RAM Cartridge''' (バックアップＲＡＭカートリッジ) is a memory card designed for the [[Sega Mega-CD]] that plugs into the [[Sega Mega Drive]] cartridge port.
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==Hardware==
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It is for use with Mega CD games which require the user to save, as unlike ROM cartridges, there is no way of saving data on the disc itself. The unit contains 2045 blocks (1 Mbit) of memory for game saves.
  
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==Maximum Capacity==
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For the North American version, the cart resembles a regular Genesis cartridge, aside from a blue edging saying "Sega CD", as opposed to the usual red edging found on standard Genesis cartridges. Some RPGs - most notably ''[[Shining Force CD]]'' - used this for memory, as there was often not enough space for the save files in the internal backup RAM. In the case of ''Shining Force CD'', this cartridge allows the player to unlock the last story segment of the game, inaccessible without the backup cart due to the Sega CD's internal memory limitations.
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===Maximum capacity===
 
While the only officially-released RAM cartridge for the Sega CD has a capacity of 1 Mbit (128 KB; 2045 blocks), the system actually supports up to 4 Mbit (512 KB; 8189 blocks). The memory size is specified by a 3-bit value mapped to Main 68000 address $400001. This value indicates the memory size as a power of two, multiplied by the base memory size of 8 KB.
 
While the only officially-released RAM cartridge for the Sega CD has a capacity of 1 Mbit (128 KB; 2045 blocks), the system actually supports up to 4 Mbit (512 KB; 8189 blocks). The memory size is specified by a 3-bit value mapped to Main 68000 address $400001. This value indicates the memory size as a power of two, multiplied by the base memory size of 8 KB.
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{| class="prettytable" style="text-align: center;"
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{| class="wikitable" style="text-align: center;" border="1"
 
 
|+ Memory Size
 
|+ Memory Size
 
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|}
  
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==Manuals==
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==Compatibility==
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* {{file| Megacd backupram jp manual.cbr | Backup RAM JP Manual}}
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{{AccessoryCompatibilityList|CD BackUp RAM Cart}}
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==Versions==
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===Localised names===
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{{aka
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|us_name=CD BackUp RAM Cart
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|jp_name=バックアップＲＡＭカートリッジ
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|jp_trans=Backup RAM Cartridge
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|jp_rom=
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}}
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==Magazine articles==
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{{mainArticle|{{PAGENAME}}/Magazine articles}}
  
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==Physical Scans==
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==Physical scans==
 
{{Scanbox
 
{{Scanbox
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| console=Mega CD
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| console=Mega-CD
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| region=JP
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| cover=Backup MCD JP Cover.jpg
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| cart=BackupRAM MCD JP Cart.jpg
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| cartback=BackupRAM MCD JP Cart Back.jpg
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| item1=BackupRAM MCD JP Cart Label.jpg
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| item1name=Label
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| manual=Backupram mcd jp manual.pdf
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}}{{Scanbox
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| console=Mega-CD
 
| region=US
 
| region=US
 
| front=Segacd cdbackupramcart.jpg
 
| front=Segacd cdbackupramcart.jpg
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| cart=
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| back=Back Up Ram Cart MCD US Box Back.jpg
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}}{{Scanbox
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| spine=Back Up Ram Cart MCD US Box Spine.jpg
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| console=Mega CD
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| cart=BackupRAM MCD US Cart.jpg
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| region=JP
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| manual=Backupram mcd us manual.pdf
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| front=Mcd backupram jp box front.jpg
 
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| back=Mcd backupram jp box back.jpg
 
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| spine=Mcd backupram jp box spine.jpg
 
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| cart=
 
 
}}
 
}}
  
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[[Category:Mega CD Accessories]]
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==External links==
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* Sega of Japan catalogue pages (Japanese): [https://web.archive.org/web/*/http://sega.jp/fb/segahard/mcd/backup.html Mega-CD]
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==References==
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<references/>
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{{MegaCD}}

Latest revision as of 13:55, 3 October 2022

BackupRAM MCD US Cart.jpg
CD BackUp RAM Cart
Made for: Sega Mega-CD
Manufacturer: Sega
Type: Memory card
Release Date RRP Code
Sega Mega-CD
JP 		¥6,3006,300 G-2920
Sega Mega-CD
US 		$59.9959.99[3]

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CD BackUp RAM Cart or Backup RAM Cartridge (バックアップＲＡＭカートリッジ) is a memory card designed for the Sega Mega-CD that plugs into the Sega Mega Drive cartridge port.

Hardware

It is for use with Mega CD games which require the user to save, as unlike ROM cartridges, there is no way of saving data on the disc itself. The unit contains 2045 blocks (1 Mbit) of memory for game saves.

For the North American version, the cart resembles a regular Genesis cartridge, aside from a blue edging saying "Sega CD", as opposed to the usual red edging found on standard Genesis cartridges. Some RPGs - most notably Shining Force CD - used this for memory, as there was often not enough space for the save files in the internal backup RAM. In the case of Shining Force CD, this cartridge allows the player to unlock the last story segment of the game, inaccessible without the backup cart due to the Sega CD's internal memory limitations.

Maximum capacity

While the only officially-released RAM cartridge for the Sega CD has a capacity of 1 Mbit (128 KB; 2045 blocks), the system actually supports up to 4 Mbit (512 KB; 8189 blocks). The memory size is specified by a 3-bit value mapped to Main 68000 address $400001. This value indicates the memory size as a power of two, multiplied by the base memory size of 8 KB.

Memory Size
3-bit Value
@ $400001 		Size (Kbit) Size (KB)
000 64 Kbit 8 KB
001 128 Kbit 16 KB
010 256 Kbit 32 KB
011 512 Kbit 64 KB
100 1024 Kbit 128 KB
101 2048 Kbit 256 KB
110 4096 Kbit 512 KB
111 not present

Compatibility

Versions

Localised names

Also known as
Language Localised Name English Translation
English (US) CD BackUp RAM Cart CD BackUp RAM Cart
Japanese バックアップＲＡＭカートリッジ Backup RAM Cartridge

Magazine articles

Main article: CD BackUp RAM Cart/Magazine articles.

Physical scans

Mega-CD, JP
Backup MCD JP Cover.jpg
Cover
BackupRAM MCD JP Cart Back.jpgBackupRAM MCD JP Cart.jpg
Cart
Backupram mcd jp manual.pdf
Manual
BackupRAM MCD JP Cart Label.jpg
Label
Mega-CD, US
Back Up Ram Cart MCD US Box Back.jpgBack Up Ram Cart MCD US Box Spine.jpgSegacd cdbackupramcart.jpg
Cover
BackupRAM MCD US Cart.jpg
Cart
Backupram mcd us manual.pdf
Manual

External links

  • Sega of Japan catalogue pages (Japanese): Mega-CD

References

  1. ↑ http://sega.jp/fb/segahard/mcd/backup.html (Wayback Machine: 2014-08-04 01:55)
  2. ↑ Sonic Times, "Volume 2 Number 9: October 1994" (US; 1994-xx-xx), page 8
  3. ↑ GamePro, "August 1995" (US; 1995-xx-xx), page 110


Sega Mega-CD
Topics Technical specifications | History | Magazine articles | Promotional material
Hardware Mega CD (Asia | North America | Western Europe | Eastern Europe | South America | Australasia | Africa)
Sega Multi-Mega (Asia | North America | Europe | South America | Australasia)
Wondermega | LaserActive | CSD-G1M
Misc. hardware CD BackUp RAM Cart | Mega-CD Karaoke | Pro CDX
Development tools SNASM Mega-CD | PsyQ Mega-CD SDK | PSY-Q CD Emulation System (Mega-CD)
Unreleased hardware Game Genie
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