315     DVDCBCallback    callback;  member
346     DVDCallback     callback;  member
424                            DVDCallback callback, s32 prio );
428 #define DVDReadAsync(fileInfo, addr, length, offset, callback)  \  argument
429                          DVDReadAsyncPrio((fileInfo), (addr), (length), (offset), (callback), 2)
436                            DVDCallback callback );
450                            DVDCallback callback );
457                            DVDCallback callback, s32 prio );
461 #define DVDSeekAsync(fileInfo, offset, callback)                \  argument
462                          DVDSeekAsyncPrio((fileInfo), (offset), (callback), 2)
467                            DVDCBCallback callback );
566 BOOL DVDCancelAsync(DVDCommandBlock* block, DVDCBCallback callback);
568 BOOL DVDCancelAllAsync(DVDCBCallback callback);
577 BOOL DVDCheckDiskAsync(DVDCommandBlock* block, DVDCBCallback callback);