The Atari Jaguar CD is a CD-ROM peripheral for the Atari Jaguar video game console which had been announced prior to the Jaguar's launch. The device sits on top the Jaguar console, fitting into the ROM cartridge slot. The drive has its own cartridge slot to allow cartridge games to be played without removing the CD drive. It was released on November 21st 1995 for $149.95, which would equate to $244.59 today.
November 21st, 1995 Source: wikipedia.org
The drive included two games (Blue Lightning and Vid Grid), a music CD (Tempest 2000 soundtrack), and a Myst demo disc.