RAM and interface in DAC possible?

[tim miils]

And a 3.5" diskette drive?

That sampler either has fantastic backwards compatibility, or it is an older one...

yes, 1997 with added optional S/P-DIF coaxial and optical I/O board.

 

[dunring]

The easy way is in Musicbee and Foobar there's an option to load the whole song into memory for playback. As long as you have the system memory to spare it'll do just what you want.

 

[Roseval]

if you can add RAM and a RAM interface into your DAC

Of course you can. The only problem is that you need a processor to spool the data out of memory to the DAC.
Of course you can do this with a very small low power processor.
We might even load the songs in memory first and, to avoid any possible interference, disconnect the computer.
So an MP3player is the way to go....