May 29, 2008
New Aleph Location Codes for the Walter SMART Learning Commons collections
Walter LRC has become the Walter SMART Learning Commons! Please use the following location codes for Aleph item records:
SLC SMART Learning Commons
SLCC SMART Learning Commons (Closed Stacks – Ask at SLC Desk)
SLCD SMART Learning Commons (Desk Coll. – Ask at SLC Desk)
The WALT, SLC code should be sufficient for most materials (especially video). If you inadvertantly use the "old" code in the Aleph item record, the system will correct it to the new code.
Questions? Ask Mary
September 28, 2005
Guidelines for Media Resources in Academic Libraries
An ACRL task force has just completed a new draft of the Guidelines for Media Resources in Academic Libraries.
If you have suggestions or comments on the draft, please send them to the Task Force chair at: William N. Nelson, Augusta State University (firstname.lastname@example.org)
June 1, 2005
Trivia: What's up with 007 coding for CD speed?
A recent discussion on the AUTOCAT list addressed the reason why the speed of an audio compact disc is 1.4 meters per second (007/03 f). Just in case you're curious, here's a good explanation of why this is the case:
"CDs and DVDs address this by using what is called Constant Linear Velocity (CLV) The surface moves past the read head at a constant rate. This means as the pickup head moves from the center toward the edge of the disc, the disc does not have to turn as fast since there is more ground to cover. It is akin to the old "whirly go round" at the park. The kid on the outside had to run fast, but the kid in the center barely had to move. The rate chosen was 1.4 meters per second. As the disc plays, there is more "landscape" to record on so the disc doesn't need to move as fast."
March 2, 2005
Holdings and Items for AV materials in the LRC
The guidelines for holdings and item records for LRC materials (formerly available only in the Aleph cataloging manual) have now been posted on the Special Formats Corner. Read them here.
Questions? Ask Stacie
February 26, 2005
Know your shiny discs: Dual Disc
Here's another shiny disc format to know about: dual disc. Dual disc is a double-sided disc that has a DVD layer on one side, and a CD layer on the other side. The idea is that a Dual disc can include a full-length high-quality sound recording on its CD side, while it can contain video content relevant to the music on its DVD side.
Many DVD-Audio discs also contain both audio and video content, but unlike DVD-A, Dual discs don't require special equipment -- they are supposed to be playable in any DVD or CD player. Each side of a Dual disc is clearly marked DVD or CD. More information about Dual disc is available in this FAQ.
Some industry commentators have raised issues about the format. First, there is concern that Dual disc's CD side is not quite fully compatible with the "Red Book" standard that CDs are supposed to meet in order to guarantee their playability in every machine. Second, Dual discs may be too thick to work in slot-loading DVD/CD players -- like car stereos and some laptop drives. If a consumer tried to use a too-thick disc in a slot-loading system, the disc would likely become stuck, and the player/drive would have to be serviced. It is too early to know if these will be major issues for Dual disc.
Dual discs have only been widely available since October 2004 and haven't really taken off just yet, so there's a good chance that we won't see any for a while (if we ever do). But how would you catalog one, if by chance it turned up? You would follow the same basic principles used for Enhanced CDs, DVDs with both video and computer disc content, or DVD-As with audio and video. Here are some tentative guidelines:
- First, decide whether music or video is the primary component. In my judgment, most of the Dual discs issued so far seem to be basically sound recordings with bonus video. So follow guidelines for music sound recordings and refer to AACR2 Chapter 6.
- Describe the video aspects of the disc by adding the appropriate 006 and 007 fields.
- Add a 538 field to bring out the fact that one side of the disc is DVD. Also add any 5XX notes that you think are necessary to describe the video content. Note that multiple 505s may be appropriate: one for the CD side, and one for the DVD side.
- Make added entries for any persons or corporate bodies you mentioned in 5XX fields who contributed significantly to the video content, if they did not already receive a tracing for contributions to the audio content.
Questions? Ask Stacie.
Category "Electronic Resources"
December 14, 2004
How to tell the difference between a CD-ROM and a DVD
Sometimes it's hard to tell whether a disc is a CD-ROM or a DVD, especially when the publisher gives no indication. Here's one way to tell when you can't tell any other way:
- Put disc in your computer and wait for it to load up.
- Open Windows Explorer. Find your CD/DVD drive (usually the D: drive) under "My Computer."
- Right-click on the CD/DVD drive icon. A menu will pop up.
- Choose Properties from the menu. This will open a window with technical information about the disc in the drive.
- Check the size on the Properties window. If it's under 700 MB, it's probably a CD-ROM. If it's over 700MB, it's almost certainly a DVD (a DVD can hold up to 4 GB of data, while a CD can only hold up to 700 MB).
Questions? Want to see this demonstrated? Ask Stacie.
December 1, 2004
What are DVD-Audio discs and SACDs?
Here's some helpful information from an ongoing discussion on the OLAC list about these disc types that look just like normal CDs and DVDs:
- DVD-Audio discs, or DVD-A's, as they're often abbreviated, must be played on a disc player that states it will play DVD-A discs. Some standalone DVD-video players will play DVD-A, but not all. DVD-A discs should be cataloged as sound recordings, with extra 006/007 fields and notes to describe any non-audio content they might have.
- Most of the titles issued thus far in DVD-A don't have video on them, though some do. If a DVD-A contains video content, make sure to include 006, 007, and appropriate notes for the video aspects as well as the sound recording aspects.
- Another format to be on the lookout for is SACD (Super Audio CD). SACDs come in two forms: "pure" SACD and hybird SACDs. Hybrid SACDs have a layer of standard CD encoding in addition to the SACD stereo and/or 4.1 or 5.1 surround layers, which means that hybrid discs can be played on normal CD and DVD players. "Pure" SACDs require a player with special capabilities. Again, some, but not nearly all, standalone DVD-video players can play SACDs.
- Many manufacturers make "Universal" players that will play all of the major shiny-disc formats (audio CD, DVD video, DVD-A, and SACD).
Still confused, or want more information? Check out the DVD Audio FAQ.
Category "Electronic Resources"
September 15, 2004
AACR2 Amendments 2004
The JSC website has a list of changes in the 2004 Amendments to AACR2, which have already been incorporated to the version on Cataloger's Desktop. Here's a summary of major rule changes affecting special formats:
- Maps: punctuation for dimensions has changed slightly (3.5D1). For any map where both the dimensions of the map and the dimensions of the sheet are given, the two dimensions should be separated by a comma:
1 map : both sides, col. ; 45 x 80 cm., on sheet 50 x 44 cm.
- Sound recordings and Video recordings: AACR2 (6.5B1, 7.5B1) now allows the option of using a "term in common use" as the specific material designation (e.g., "1 DVD" instead of "1 videodisc"). Please do not apply this option until there has been an official local decision on whether to use it. Until then, continue to use the prescribed SMDs.
- Electronic Resources: There is now an option to provide a physical description for remote-access electronic resources (9.5B3, 9.5C3). This might be especially useful for certain types of remote-access e-resources, such as images. Until a local decision is made, do not apply the option.
Questions or comments? Please contact Stacie.