Policies and Procedures
Technical Services
Document: VIDEO PURCHASING GUIDELINE: PREFER DVD FORMAT WHEN AVAILABLE
Effective Date: July 1, 2003 (if formalized)
Recommendation: DVD is the preferred format for titles released in both DVD and VHS
Background:
- Content.
DVDs traditionally contain additional material, sometimes an extensive amount. Theatrical releases can often be viewed both in letterbox or cropped. Many DVDs offer multiple language tracks and/or contain a director's voice-over commentary track, ideal for film research. It is possible to "search" and jump to content on DVD's to view selected scenes and features. VHS requires physical rewinding to go to access other content on the tape. Theatrical trailers, documentaries on the making of the film, interviews, extra footage, etc. are standard on most DVD theatrical releases. Documentary and educational titles generally contain additional material not included in the VHS release.
- Preservation.
Although all formats are subject to damage, DVD is sturdier than VHS. VHS cassettes must be replaced more frequently due to damage in transit, from use, and magnetic degradation. Unintentional de-magnetization during circulation or by patrons occurs with VHS. DVD does not have this problem because it is not a magnetic medium. DVDs are resistant to scratches and minor damage. DVD is a smaller format and takes less space to store.
- Availability.
Because it is the preferred consumer format at this time, DVDs are increasingly released prior to the same title on VHS. If trends continue, fewer titles may be released to VHS due to decreased consumer demand and lower profit margins.
- Cost.
Although the cost for large sets issued in both DVD and VHS tend to be similar, single disk DVDs usually cost more than VHS. However, for the purpose of building a circulating research collection, the more stable format, less frequent need for replacement, and extra content and features makes DVD more cost effective.
Return to CAC June 12, 2003 agenda.