(a)Form. Uncompelled direct testimony must be submitted in the form of an affidavit. All other testimony, including testimony compelled under 35 U.S.C. 24 , must be in the form of a deposition transcript. Parties may agree to video-recorded testimony, but may not submit such testimony without prior authorization of the Board. In addition, the Board may authorize or require live or video-recorded testimony. (b)Time and location. (1) Uncompelled direct testimony may be taken at any time to support