Do not test cache feature with EAC itself, use Feurio! Demo instead.
EAC's test for caching is highly unreliable, which is known for long but still not mentioned at http://www.daefeatures.co.uk/faq.php#test — in fact, all test results for e.g. HL-DT-ST (LG) drives are incorrect in that they claim those drives would not cache audio data while they do indeed cache 37kB of it.
To reliably test a drive's caching functionality one should use a Demo of Feurio! which is also able to test how much audio data the drive actually caches.
