With Paramount deciding to endorse HD DVD back in August, the number of Blu-ray titles dropped by 29, giving HD DVD the advantage in regards to the total number of available high-def titles. According to Home Media Magazine, Blu-ray regained its lead over HD DVD in early November with 332 available titles.
When Paramount Home Entertainment and DreamWorks Animation SKG Blu-ray Disc titles were taken out of the picture in August, Blu-ray lost 29 titles in its repertoire. That doesn’t include three titles that had been announced, but not released.

HD DVD’s stint as leader in terms of high-def releases proved short-lived, however, as in the first week of November Blu-ray regained its lead in terms of total titles available to consumers.

According to figures from The DVD Release Report, total Blu-ray titles available at retail passed HD DVD for the first time since the Paramount/DreamWorks decision, 332 to 328, the week ended Oct. 31. Companies that support Blu-ray also have 66 titles in the pipeline, compared to 42 for HD DVD backers. Those numbers include four HD DVD and 11 Blu-ray titles released Nov. 6.
While Blu-ray's lead is small, it doesn't look like HD DVD will catch up any time soon. If you'd like to read more, the entire article can be found here.