I know this is probably an often asked question, but I don't really see the answer I'm looking for. I'll try to make my information request simple and clear. * I want to play FLAC files located on my laptop (or external hard drive) on my vintage stereo equipment. * My questions are more about the equipment and interconnection than software. I can figure out the software after I get the technology down. * I do not want to use any music streaming service. * I would prefer to use a small laptop or similar with an external hard drive that stores the music files so I can leave the laptop in place. * I want to have the best quality music reproduction possible instead of settling for the standard computer output, if that makes sense. * I have an existing Toshiba laptop and a E-Machine tower that are not currently used for anything. Not that old. However, I'm not against something new. * I'm not afraid to get into the guts of a machine. I have opened up machines a lot in the past. * RCA plug interface for the vintage equipment would be ideal, since I have several different systems and the RCA interface is the only consistent interface I have with all of them. * I'm not afraid to purchase a DAC unit or whatever to make this happen. * I am a live music collector and have many, many GB of files that I want to be able to select on the screen and play. Thank you for your insight and help.