You don't need the special Audio CD-Rs for audio work. The only real difference between them and ordinary CD-Rs is a flag that allows the blanks to work in consumer audio CD-R machines. This isn't needed for computer CD-R drives.
My audio work is all done using 52x inkjet printable Taiyo Yuden CD-Rs - though I don't write them at 52x. The last batch I did (which is a small commercial run) were written at 12x in a Plextor PX-W1210TS.
2 seconds sounds suspiciously like you're trying to write the disc as TAO (Track At Once). Don't - use DAO (Disc At Once) instead and you should be able to reduce the gaps.