Philips Background Music Services cartridges were based on the Fidelipac B size cartridge and were 4-track mono cartridges for background music systems made by Philips. Being based on the Fidelipac cartridge meant they were endless loop tapes and would simply repeat the music once all four tracks had been played through.
There appear to have been two models of player, the BMS 2500 and the BMS 2600.
The cartridges themselves display a description of the type of music contained on them (for example, ‘music for stylish surroundings’) and are contained in a box that had the return address and space for a stamp on the rear, so the cartridges could be returned to Philips Background Music Services after use.
The system could be used for locations such as shops, offices and restaurants, and the pre-recorded music was licensed for public performance
By 1989 Philips had begun using the CD-BGM format, for example in its BMS 3000 player.