Should be a quickie -- How do you pronounce Dvorak?

That wiki sound file is quite illuminating.

The “D” is pronounced clearly, and the stress is on the last syllable. There are two speakers in the file. The first is a woman and says what sounds to me something like “d’vor-SHAHK”. The second is a man, and his pronunciation sounds something like “d’vor-HAHK”.

But that’s just my approximation, so listen to the file. Audacity (free) will play it, as will other software.