Hi Richh
The reason for not seeing the 'Get Librespot' option could be that you are running on the 'B2 xxx yy zzzz' software. The B2 needs to be running on 'B2B xxx yy zzzz' software, with the latest version being 'B2B Jan 26 2021'. The option is located in 'Settings' --> 'Maintenance' --> 'Advanced' --> 'Get Librespot' if it is available.
Alternatively, if your software version is 'B2B May 19 2020' or older then this option will not be present. You can usually address this but running 'Settings' --> 'Web Upgrade'.
You can find out the version either through the front panel and remote control (press the 'Info' button twice and look for 'Version ...........' on the B2 front panel or through the WebUI go to the left hand window then click on the little 'cog wheel'. This brings up the 'Settings and Status' window which gives the 'Software version .........'
The SD card is the piece of hardware that holds the 'B2' or 'B2B' software (not the music). There are two types of SD card;
The earlier B2s, pre Spring 2017, use a full size SD card (which protrudes out of the right hand side of the B2 casing)
The later B2s, post Spring 2017, use a smaller microSD card (which is inside the B2 casing)
The cards both perform exactly the same function and use the same software set, so other than the physical size change there are no differences between them.
If you are running on 'B2' software and wish to upgrade to 'B2B' software, then you can order the (micro)SD card from Brennan at a cost of £10.
You can also download the 'B2B' software from the Brennan website, and copy this software to your existing (micro)SD card at no cost. The instructions to do this are found at:
Regards,
Peter.