However, they were errors of "clumsiness" rather than errors that made them a nullity.
"It simply is a case of clumsiness or sloppiness in translating the application into a warrant."
Mr Boldt said the warrants were not excessively broad and set out to do exactly what Justice Winkelmann said they ought to.
He said what the warrants had sought was adequately conveyed when read as a whole.
It was clear from the warrant applications that Dotcom's Mega business was a "front" that purported to act as a legitimate file storage and file sharing site, Mr Boldt said.
The warrants made it clear that the entire business was a copyright infringing entity designed to look like a legitimate entity, and therefore anything that contained evidence about the business would be relevant to the criminal inquiry.
Dotcom is being represented by lawyer Paul Davison QC, who successfully argued before the High Court that the warrants had been illegal.
The appeal before Justices Ellen France, Anthony Randerson and Douglas White is continuing today.