Help pronouncing names in Death Note...?

Question:

Help pronouncing names in Death Note...?

I'm having difficulty reading a few of the names from the anime series Death Note. Please help with these names:

-Ryuzaki
-Wedy
-Aizawa
-Soichiro

Please show me how to pronounce them like this: For example, you pronounce the name "Jimmy" as JIM-mee. Please uppercase the syllable that is stressed! Thanks!

Best Answer - Chosen by Asker: I'm not sure exactly how to pronounce some Japanese names, but it seems they should be like this:
ry-u-ZA-ki
WED-y
ah-i-ZA-wa (usually, with the "ai" diphthong, the "a" is not pronounced)
so-i-CHI-ro
You might ask someone who is/speaks Japanese to be sure.