If by "service" mean Spotify or something like that - that's not how they used to work. The various Sampler playlists pre-date services like Spotify, etc. They used to be audio streams that you could listen to via a media player. It looks like some of them - the HardRockSampler and DanskRockSampler (as well as the Rome sets) have now been put onto Mixcloud if you look here: