My guess is that the Slotradio card is 4GB, since there are Slotradio+ cards available that have 4 GB free space. If the Slotradio card was 8 GB, then the Slotradio+ cards would have 8 GB of free space. A thousand songs in 4 GB would mean a bitrate of 128 kbps, but the Slotmusic Oldies card sounds better than 128 kbps mp3 , so some more advanced/better sounding format is probably used.
The Slotmusic cards are 1 GB and the music on them is 320 kbps mp3.
Some maybe, but I’ve noticed a few that sounds like they’re playing on a circa-1960’s Japanese transistor AM radio played through a couple of tin cans and a taut string.
I was familar with the tunes in question as I already had them on a player ripped directly from CD at 256kbps. The SlotRadio copies seemed to being lacking about half the data. They sounded terrible!
Luckily they aren’t all this way, but I still say they’re not ripped at anything more than 128kbps.