MERLIN: The LaserCon Merlin board is a laserdisc player conversion board. Merlin replaces the game's ROM board and re-programs the game system to use a modern laserdisc player. No extra boards need to be installed in the machine. Merlin also provides multiple ROM sets, including Dragon's Lair Enancement" and "Space Ace".

The LDP Converter: The "Original" LaserCon LDP conversion card can be used to upgrade Dragon's Lair to a modern Laserdisc player.
It supports both the U.S. and European verions of Dragon's Lair, but not Dragon's Lair II.
No extra ROMs are included with the LaserCon Original.

MultiROM for Dragon's Lair and Space Ace: This board replaces the original ROM board on the U.S. Versions of Dragon's Lair and Space Ace.
With the MultiROM installed, the player can change the gameplay firmware at each start-up. MultROM includes 11 versions of Dragon's Lair (the earliest Beta version to the last arcade version), and 4 versions of Space Ace. You also get "Dragon's Lair Enhancement" and "Space Ace Enhancement", new versions with improved gameplay.
However, MultiROM is NOT a player conversion card.

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The Best replacement Laserdisc players for Dragon's Lair are the a Pioneer LD-V8000, LD-V4400, LD-V4300D and LD-V4200.
Other players that work are the Pioneer CLD-2600, CLD-2400 and LD-V2200.
For the European version of Dragon's Lair use the Pioneer LD-V4300D or LD-4100P.