For purposes of the federal best evidence (or original document) rule, an "original" of a writing is the writing itself or any counterpart intended to have the same effect by a person executing or issuing it; the "original" of a recording is is the recording itself or any counterpart intended to have the same effect by a person executing or issuing it; the "original" of a photograph includes the negative or any print taken from the negative; and the "original" of data stored in a computer or similar device includes any printout or other output readable by sight shown to reflect the data accurately.

United States v. Jackson, 208 F.3d 633, 637 (7th Cir. 2000) (upholding trial court's exclusion of the web postings as hearsay evidence because they "were not statements made by declarants testifying at trial, and they....Hearsay evidence is inadmissible.

United States v. Hernandez, 333 F.3d 1168, 1176-1180 (10th Cir. 2003) (upholding trial court's admission of the serial number records of friend Jacqueline Grant and defendant's sister, Renee Hernandez as recorded recollection....Federal Rule of Evidence 803(5) or a comparable State rule creates a hearsay exception for a memorandum or record concerning a matter about which a witness once had knowledge but now has insufficient recollection to enable the witness to testify fully and accurately, shown to have been made or adopted by the witness when the matter was fresh in the witness' memory and to reflect that knowledge correctly.

Fed. R. Evid. 601 ("Every person is competent to be a witness except as otherwise provided in these rules.").Every person is a competent witness unless a statute or a rule of evidence provides otherwise.