Product Code Database
A keep case or poly-box is a type of packaging, most commonly used with and Blu-ray videos (and sometimes Compact disc).
Besides DVD-Video films, keep cases are very common with most disc-based video games since the PlayStation 2, and they are also found on many PC titles and MP3-CD (all use discs that are the same basic dimensions as a DVD).
| +Full size |
| Usually for audiobooks and student educational materials issued after mid 2000s. |
| Case thickness varies, although typically 15mm. |
| Rarely for individual discs. Used primarily for some Blu-ray/DVD combo packs. |
| Usually for CD-ROM games issued after mid 2000s. |
| Only used for one game, Metal Gear Solid in the United States as part of a set. |
| Most contain a memory card slot |
| Select titles in Japan only. |
| North America/Europe. Most contain a memory card slot. |
| +Smaller size |
| Used for some audiobooks and MP3 CD's issued after 2006. |
| Rarely used for single discs, Black cases usually used for bonus features DVD disk in some Blu-ray and HD-DVD movie compilation packs. Clear cases used for some DVD music concert albums. |
| Used for select reissued Xbox 360 titles after backwards compatibility was added to the Xbox One, Left handed case, Both Xbox 360 and Xbox One logos are embossed onto the top |
| Left handed case, The Xbox One logo is embossed onto the top. Later issues lack the embossment, and have full size liner notes with "Xbox One" on the liner itself. |
| Left handed case. An updated Xbox logo, in white, is embossed onto the top. There is also a black sticker of the "Series X" logo on the upper right corner of the case. Later issues lack the embossment, and have full size liner notes with "Xbox Series X" on the liner itself. |
| +Larger size |
| Only used for the limited edition issue of |
| Snap case |
| +Proprietary size | |||
| Japan, also used for Game Boy Player startup disc in North America. Most contain a memory card slot. | |||
| North America/Japan, most contain a slot for Game Boy Advance cartridges or DS options pak. | |||
| Europe, most contain a slot for Game Boy Advance cartridges or DS options pak. | |||
| Regular 3DS Games in all Regions; New 3DS exclusive Games only in Japan and North America | |||
| Europe | |||
| Has tabs on right side above cartridge slot to keep any included printed materials in place | |||
| Nintendo Switch 2 Games | Red | 170mm x 104mm x 10mm | |
In addition to "pluck hubs" (which are often a simple evolution over the classical "crown of teeth"), "push-to-release" hubs are very common: in this case the hub is made in such a way that simply pushing on it with a finger compresses its component parts, thus shrinking the space it occupies and releasing the disc center; under normal situations the release cannot occur accidentally and requires someone to push on the hub (this is obviously more difficult to obtain in slim and ultra-slim cases, where in fact pluck hubs may be preferred to push-type ones).
The center "pluck hubs" are designed to keep a disc in place while shipping, but can be too tight for normal home use. Because of this, the disc can be damaged upon removal due to excess warping. However, the edges of the center hub can be permanently bent in slightly to allow for a looser fit. Discs are then able to slip out easily, ideal for the home shelf.
A keep case, thus, approximates the Video Software Dealers Association recommendation that a single-disc DVD-Video package have the same height as a VHS tape (187 mm) and the same width as a CD jewel case (142 mm). These dimensions are similar to digest size magazines.
Similar, though not identical, packaging is used for commercial Blu-ray Disc titles and was used for HD DVD titles. However, the dimensions of the cases are somewhat different, about 19 mm shorter. The individual cases are color-coded, with blue being used for Blu-ray and red for HD DVD, and the format displayed prominently on a stripe above the cover art.
|
|
