WiFi

Audio files looks impressive, 600 Mb for a CD.

To play it takes an hour.

600 Mb per hour is not a demanding task for a computer or a network.

 

Red book audio is playing 16-bit PCM audio at 44.1 kHz.

This is 705600 bit/s or 0.67 Mbit/s.

We have stereo so 1.34 Mbit/s.

 

A Wi-Fi network (802.11 G) has a gross throughput of 53 Mbit/s (network speed is expressed in bits per second, not bytes).

If we assume an overhead of 2, playing Redbook audio still fits in.

Even hires audio e.g. 24/192 kHz requiring 8.8 Mbit/s, fits in.

If reception is poor or you neighbors are using the same channels, you might run into troubles (dropouts).

Wi-Fi channels and their overlap, 1,6,11 is the non-overlapping combination

 

In these cases a CAT5e cable is the answer.

Wired requires less overhead and is faster (100/1000 Mbit/s).

You don't share it with your neighbors either.

If it is not feasible to run a wire, a home plug (Ethernet over the power lines) is an option.

Upgrading to 802.11 N might help too as it has a bigger bandwidth.