I have read somewhere online that when video is compressed for internet use this distorts sound quality. The music sound track gets amplified and can therefore drown out the spoken word sound track. Maybe this explains why so many of the documentaries on this website have unbearable backing music: loud, intrusive, distracting. Or maybe the sound quality is crap on many documentaries because many people these days listen to over-amplified junk and have lost the capacity to recognise when things sound bad. Whatever the explanation, this documentary (like so many on this website) could be really interesting but is spoilt and made almost unwatchable because every section is drowned out by some choral music which is so loud you can hardly hear yourself think let alone hear the people talking to you. Get past that and there are snippets of interesting ideas about how these books were created and what purpose they served to the makers and their contemporaries. Worth watching but maybe better if you could watch it with the sound off and subtitles. Otherwise expect an eye-watering eternity of screaming choirs or mock-medieval ‘Celtic’ instrumentals. Last comment: Book of Kells is a religious text produced by monks but no monks are interviewed about the meaning of the book. Instead we only hear from secular scholars. When did they decide they had more right to Christian culture than Christians? Would they have the bloody gall to treat other cultures like this? I hope not. So, don’t expect a balanced account of the Book of Kells just an account that presents academe as having a right to appropriate everyone else’s culture if academe takes a fancy to it. Not just the Norsemen who sack and pillage, then?