SanDisk and Sony today announced the development of a new Memory Stick PRO-HG format, compatible with the existing Memory Stick PRO format. The Memory Stick Duo sized card extends the maximum storage capacity by up to 32GB, and boost performance by increasing the internal core clock from 40MHz to 60MHz. As a result, the maximum data rate has jumped to 60MB/sec - three times that of the Memory Stick PRO format. Minimum write speed for Memory Stick PRO-HG media is listed at 15MB/sec. The first Memory Stick PRO-HG media will be available in January 2007, but there is no information when the format's maximum 32GB storage capacity will be reached.