I've recently had the idea of recording my lectures at Uni. Since I
always carry my phone around with me, it seems like the perfect device
to use.

However, when I try to use the sound recorder function on my phone, I
end up only getting about 5 minutes of audio before it suddenly stops
recording. For some reason, the screen still shows that the lecture is
being recorded so I have no idea that the phone has actually stopped.

Does anyone have any ideas why it is doing this and how I can make the
phone record for longer?

Free memory is certainly not an issue as both phone and memory have
well above 20 MB. Since the 5 minute audio files recorded only seem to
be around 1MB, this is certainly not an issue.

Kind regards,

Matt