Decent or reasonable... that's the question
if reasonable ISD4xxx would do.

for better quality or high quality, it's obvious you really want to avoid anything like MP3... but then there's a lot of are plenty satisfied with MP3... way better than that poor noisy ISD4xxx but... you will need storage devices (MMC card or whatever else)

Worth to have a look at Winbond website, they should have better chip than those 'Telephone line' vouched ISD4002.