On the first point: there's no great problem with filing a DVD in court (so long as it is properly labelled) and you can reasonably assume that any member of the judiciary will have a laptop and normal software available. If you want a larger screen or specific software, you will need to discuss the matter with the court, which leads into your second point.
At the hearing of your case, it will be necessary to identify the exhibits to which you refer, and a location where they can be kept safe and unmolested. Normally, this would be the solicitor's office or barrister's chambers (on an undertaking that they will not be interfered with in any way); but it can be anywhere, so long as the Court agrees.
Source : many years in the High Court, where IP cases led to filing of everything from vodka bottles to an Imperial Stormtrooper uniform.
Edited addition (rather late) to deal with comment below: This is not a specific law or rule, but a matter of natural justice. Exhibits serve the purpose of helping the court to understand what is said in a specific affidavit or given in evidence by a specific witness; it is therefore necessary that anybody who later needs to understand the evidence (perhaps an appeal judge or a party who was not present, but now wishes to dispute the evidence) has access to that exhibit, and that the identity of the exhibit is beyond dispute. A document or CD is labelled and kept in the Court file; anything too large to go in a filing box must be labelled and kept safe elsewhere, which must be a decision of the Court.