Originally Posted by Dominic26
I'm not sure what you mean in the last line, about "Microsoft Networking shares". The PC's play the music using iTunes. The music is on a Synology NAS., which uses their DSM software. I will also try their help forums to see if there is a setting to help. I only have the problem on the 2000, not the PCs.
UPnP AV (DLNA) is the protocol your receiver uses to access the music stored on your NAS. Microsoft Networking (also called CIFS, NetBIOS, SMB, and various other things) is completely different protocol used for sharing files between computers, and this is how PCs normally access files on a NAS. I'm pretty sure iTunes doesn't support UPnP AV, so it must be using a network share on your NAS that you've either mapped to a drive letter (Z:\music) or accessed through an UNC pathname (eg. \\MyNAS\music).
From the perspective of iTunes your NAS looks just like a local drive, and it accesses your music the same way it would if they were stored on your PC's harddrive. Windows handles all the networking more or less transparently.
To your receiver your NAS looks a fair bit diffferent. It doesn't see a bunch of files, it sees a collection of music which it can ask the NAS to stream. With Microsoft Networking a file named "taxman.mp3" is just a meaningless series of byte values, it's up to applications like iTunes to interpret the contents of the file. With UPnP AV, its a song in the MP3 format, performed by the Beatles from an album named Revolver. Because of this your NAS can do things like transcode your Apple Lossless files into a format your receiver supports, something it couldn't do using Microsoft Networking protocols.
Anyways, I don't think there's anything on the NAS you can do eliminate the pause between tracks. Your receiver decodes and plays one song a time, so there's always going to be some delay between songs. On your PC, iTunes will start decoding the next song before the previous one is finished playng so that it can go from one track to the next without any interruption.
Converting your songs from Apple Lossless to something your receiver (and NAS) supports might help make the delay between songs shorter.