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GeezerVison is showing extended.graphics — Compact Disc Extended Graphics Compact Disc Extended GraphicsCD Extended Graphics (CD+EG, CD-EG, CDエクステンディド・グラフィックス) is an extension to the CD Graphics (CD+G) standard. The extended commands allow for more colorful images and advanced transitions. Like CD+G, CD+EG occupies otherwise unused subchannel space on a CD Audio disc, so it has the same audio capacity as a normal CD, and the audio can be played in any CD player. After the first few discs published in 1991 and 1992, CD+EG was rarely produced. Most of the discs I've found have been hardware demos or music promos, at least as many from Korea as Japan. I got involved with collecting CD+EG in July 2024, when I ran across a copy of The CD Graphics World by Extended Graphics. I set up this page to showcase my collection, and to organize information about this rare format. Please contact me with any info you'd like to share. My Collection
The CD Graphics World by Extended Graphics [PGCD-5] 
Video recorded from a Sega Saturn VINY seriesThere are 3 known Japanese retail CD+EG releases, all with VINY catalog numbers. The last is VINY-3~4, released in late 1992. They were shown together alongside decoders until at least mid-1994. From a 1992 2-4 (Spring) component catalog (Mezzo), pg. 10 From a '94.6 catalog (RobotCompo and MicroCompo), pg. 22, next to VS-G3 Mariko Senju - Vivaldi: The Four Seasons [VINY-1]千住真理子・四季・ヴィヴァルディ:ヴァイオリン協奏曲集  
      
Amadeus Original Soundtrack Recording [VINY-2]アマデウス・オリジナル・サウンドトラック盤  
  
Mashin Hero Wataru 3 Off Voice Collection ~ Special Edition [VINY-3~4]魔神英雄伝ワタル３ オフヴォイス・コレクション ～特別編 君は救世主ワタルだ！    
  
Victor CD-Graphics Station - Hit Box - Special Sampler - Feb.~Mar. 1995 [CDSG-5] 
  
Following are are known or suspected CD+EG discs not in my collection. Japanese discsThe CD Graphics World by Extended Graphics [PGCD-4]It seems like the only difference from PGCD-5 is one of the karaoke tracks: Track 5 changed from いとしのエリー (Ellie My Love) on PGCD-4 to Say Yes on PGCD-5. Seen sold on Yahoo Japan Auctions: listing (archived, front, back) 
Victor CD-Graphics Station - Hit Box - Special SamplerThere are at least three more of these besides Feb.~Mar. 1995: SMAP 3rd Anniversary [CDS-312]Seen sold twice on Mercari: listing 1 (archived, front, back, disc), listing 2 (front, back, disc) 
November 11 1994 [CDSG-2]hide, Luna Sea, Schaft, The Mad Capsule Market's, The Suns, エレキブラン Seen sold on Yahoo Japan Auctions: listing (archived, front, back) 
土用波 September 1996 [CDSG-24]Seen in an old Yahoo Japan Auctions listing saved on Aucfan: listing (archived, front, back, disc) 
Rap de Bingo [SOPI-01]There is a 1992 bingo game from Hanayama called Rap de Bingo (ラップdeビンゴ) which includes a disc with the Extended Graphics logo. It's possible this is just a mislabeled CD+G. Barcode: 4972825192726. Seen sold on Mercari (listing, archived, box front, contents, box back, disc) and an old YJA listing saved on Aucfan (listing, archived). Korean discsThanks to Deterous for tracking down and scanning most of these! Inkel CDEG Demonstration [ASCDEG-001, TGNN-1]
Inkel Demonstration Disc - CDG CDEG
Hanguk Gayo Yeongsang CDEG 2 [MHCD-8870]한국가요 영상 CDEG · 2 published by 문화레코드 (Mun Hwa Records, Co., Ltd.) 
Hanguk Gayo Yeongsang CDEG 1There's also CDEG·1, pictured here on the inlay of CDG·5: CD+EG Disc - Trot 3 [HCD-EG003]영상 인기가요 특선 CDEG CDG 겸용 트롯트 3 
The numbering suggests there could be at least two more in this series. Anam Compact Disc CDG·CDEG Demonstrations
Anam - The CD Graphics Extended Graphics Demonstration Disc [SREG-4001]Seen on YouTube: ANAM CD-G DEMO (recorded from a non-EG capable CDG player) 
CDEG 1 Lotte Mania CMPromo disc for Lotte, seen on YouTube: 한국가요 CDEG 1: 롯데매니아CM (recorded from a non-EG capable CDG player). Technical DetailsCD+EG adds an extra video buffer, doubling the video memory from CD+G. This can be used for full 8 bit (256 color) graphics, or the two buffers can be used for independent 4 bit (16 color) images. When used independently, one buffer can written while the other is displaying, then they can be instantly switched. There is also a mode that allows the two buffers to be blended together, this can produce a dissolve effect, or one layer can be scrolled on a stationary background. TODO: I intend to add more info such as: graphical techniques used on the different discs, compatibility of hardware CD+EG players, the obscure Line Graphics mode, more non-karaoke uses of CD+G, and how to accurately rip CD+G discs. Page History
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![from right to left showing Amadeus [VINY-2], The Four Seasons [VINY-1], and Mashin Hero Wataru [VINY-3~4]](/view?url=https%3A%2F%2Fextended.graphics%2Fimages%2FRobotCompo.94.6.pg22-VINY.jpg)
