Yes, my Mac does have a line-in port ( I have an Intel desktop 10.8.4 )
When I use Garageband to record an opera of over 5 hours in length, after just over 3 hours the recording stops with the message :
‘File size limit reached. Audio recordings are limited to a file size of 2 gigabytes. This recording has reached the file size limit. Recording will stop, and the recording up to this point will be preserved'
. . . even though I had been told a 40BPM project can record/play for 16:39:48. Apparently, there is no way round this.
I know Audacity is free, but I am cautious downloading unknown software, having read many problems encountered uninstalling etc : reviews also say the many features can be difficult for the novice to master.
Although Sound Studio costs, it is reassuring it is sold on the App Store.
I mentioned Audio Hijack Pro because a previous post said he had been using it for many years trouble-free.
I have 'BBC iPlayer' installed (for hearing BBC broadcasts for 7 days after transmission). Although I don't think it can be used for 'live' broadcasts, but I may be wrong.
If BBC iPlayer isn't suitable, how would I find a suitable stream (from iTunes, for example, or some other) ?