As for low results of Yamaha, do not forget that it is only one of 24x rate devices here and its results are normal for this class. Ricoh MP7080A is a bit ahead, though in general the results are similar. Hewlett Packard 9310i together with the Yamaha recorder did it least. Besides, in this test and in CD-ROM Access Time test Sony and Hewlett Packard show different results. And again, in the given test, Hewlett Packard drive shows the best.
All drives correspond to the stated access speeds.
Samsung became a leader among the recorders. As for its claimed access speed, it's the least as well. We shall notice, that Sony CRX145E-RP gave 98.2 ms instead of the claimed 125 ms. This test determines the whole system utilization with the drive working in it. Sony and HP results were similar.