About Apple DVD Player 2.7 [3.3 MB] was released yesterday. From the Apple TIL:

The Apple DVD Player is a full-featured, software only DVD player for Mac OS 9.1 and 9.2. This version adds unified support for all Macintosh G3 and G4 models that shipped with AGP graphic display cards, including support for both the ATI and Nvidia graphics cards. It is not compatible with the DVD hardware in the Power Macintosh G3, PowerBook G3, and Power Mac G4 (PCI graphics) series computers. 

Update: Reader Eric Browning reports:

Hidden DVD Firmware fix

After applying the DVD Firmware Update for my TiBook I no longer have theannoying problem of having my powerbook wake from sleep without volume.Before the update whenever I awoke from sleep I’d have to select theinternal mic then select none on the sound module control strip in order toget volume to be audible again. Just a heads up