Verbatim recently announced that they will be introducing their Mini Blu-ray media to the European market. These 8cm discs can hold 7.5 GB of data or one hour of high definition (1920×1080) video.
Verbatim, the storage media specialist, introduces recordable and rewritable Mini Blu-ray media (BD-R/BD-RE) to the European market. The 8 cm Blu-ray media will be available in specialist stores from November and will cost between €12,99 and €17,99 (RRP).

Measuring 8 cm in diameter, the new 7.5 GB discs provide approximately one hour of continuous video capture time on a single side when high definition (1920×1080) is used, and approximately two hours of video capture time with images recorded at 1440×1080. The new Mini BD media have been launched in Japan simultaneously with the new Hitachi BD-compatible camcorder in August. In Europe, the Verbatim Mini Blu-ray media will be available at the beginning of November. The recordable Mini BD-R costs €12.99, the rewritable Mini BD-R costs €17.99 (recommended retail prices).
If you'd like to read more, Verbatim's entire press release can be found here.