Help with pronouncing 道 precisely
As a Mandarin native speaker I pronounce 道 exactly same as 到，稻。 I pronounce the initial d exactly same as in dog or dad.

I also pronounce t exactly in the same way for stop. The native English pronunciation of dog and stop might be different, but to my ESL ears, they are exactly same.



Added: Here is a video teaching Pinyin Mandarin Chinese Pinyin Pronunciation. In the video the girl pronounces initials and finals 100% correctly.

Here is another online tool teaching Pinyin 汉语拼音全套flash. 
Scroll down and look for these flashes: 



The male pronunciations are also 100% correct.