How do you write the initials vjo in Japanese?

The letter 'v' is a litter tricky in Japanese. For example for DVD they write it ディーブイディー /dii bui dii/.

There are two ways to write that initial and both are correct, but the first is better:

ブイ・ジェー・オー read /bui - jee - oo/

ヴィ・ジェー・オー read /vi - jee - oo/

[oo and ee = elongated 'o' and 'e' vowels]