Until last year,RD’s feed was also heard on Music Choice,the digital cable suite of audio-only channels (until it developed its own ad-free kid-oriented music channel to replace RD when its license agreement expired after three years)…the only reference separating this version of the feed is a brief legal ID-type voiceover during the commercial breaks.

But except for some transmission delays (read slight as in a few second delay as digital sometimes takes longer to convert over over the air and up to a few minutes via internet connection ) it should be the same programming as I am aware of only one feed for radio disney going out and everyone is using that one feed.

But actually this is one of the better questions on Radio Disney on here as most are where do I listen.

BTW, they are also on Sirius radio and apparently on cell phones too

Think of it as national and local. The programming is sent out from national headquarters to the LOCAL stations.

There are minor differences in what you hear on air and over the web. This accounts for the localism your local AM station has with commercials and promotional announcements.

For instance, a local pizza shop or nail technician would not make sense advertising on the network, but might make sense advertising on the local station - and the local station will pre-empt a national spot to get the local advertiser on air.

Likewise, Coke would not buy each individual local station. They’d buy the entire network because it’s a national product.

Add that to local promotions the station is doing and that should be the only difference - other than things that time zones might affect.

Hope this explains it.
-a guy named duh