Hitachi Maxell, Ltd. (TSE/OSE: 6810) today announced that it would launch Professional Disc with rewritable 50GB recording capacity worldwide in December 2008, offering compatibility with dual layer Professional Disc system for “XDCAM” of Sony Corporation. The new product makes its debut at Maxell booth of the 2008 InterBEE show (November 19 to 21, 2008) at Makuhari Messe in Chiba, Japan.
Today, as demand for optical discs in professional broadcasting applications is expected to increase further in recording, retrieving, transferring, editing and saving HD contents in a file base. Professional Disc system, which satisfies all these needs, is highly reliable in rewritability, long-term storage capability, random access and is ideal for IT system, and its market demand is expected to increase in a future.
Maxell’s new Professional Disc “PD-50DL” is a recording media which is specially designed for Professional Broadcasting optical disc system “XDCAM”, offering high capacity storage and fast transfer rate by introducing a blue-violet laser. Incorporated dual-layer structure on one side and optimized recording layer which is ideal for high density recording, Maxell achieved enormous 50GB recording capacity in addition to high dependability which was enabled by precise spin-coating and durable hard-coating technology.
Furthermore, Maxell’s new Professional Disc “PD-50DL” is fully compatible with MPEG HD422 recorder, offering outstanding picture and sound quality, and is capable of recording approximately 95 minutes with sampling rate 4:2:2 and recording bit rate 50Mbps.
Maxell has always been developing and producing highly reliable broadcasting tapes which meets professional demand as a leading company of recording media. With Maxell’s high technology and experience developed in professional scenes, the Company will continuously develop and offer new recording media having compatibility with file base workflow further on.
・Recording time (Comparison with single layer disc “PD-23SL”)
| HD/SD |
Codec method |
Transfer rate |
Audio channels |
Recording time |
| PD-23SL |
PD-50DL
(New Product) |
| HD |
MPEG HD422
MPEG2 422P@HL |
50Mbps |
8 ch |
approx.43 min. |
approx.95 min. |
| 4 ch |
approx.43 min. |
approx.95 min. |
MPEG HD
MPEG2 MP@HL |
HQmode
(Variable Bit Rate:Max 35Mbps) |
4 ch |
65 min.*1 |
145 min.*1 |
| 2 ch |
68 min.*1 |
150 min.*1 |
SPmode
(Constant Bit Rate:25Mbps) |
4 ch |
approx.85 min. |
approx.190 min. |
| 2 ch |
approx.90 min. |
approx.200 min. |
LPmode
(Variable Bit Rate:Max18Mbps) |
4 ch |
112 min.*1 |
248 min.*1 |
| 2 ch |
122 min.*1 |
265 min.*1 |
| SD |
DVCAM |
25Mbps |
4 ch |
approx.85 min. |
approx.185 min. |
| MPEG IMX |
50Mbps |
8 ch |
approx.45 min. |
approx.100 min. |
| 4 ch |
| 40Mbps |
8 ch |
approx.55 min. |
approx.120 min. |
| 4 ch |
| 30Mbps |
8 ch |
approx.68 min. |
approx.148 min. |
| 4 ch |
|
| |
| *1 |
HQ、LP mode recording time maybe more than the above specified figures depending on the actual rate used in MPEG-2 encoding. |
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・Main Features
| 1. |
Ideal phase change recording layer for dual layer |
| |
Maxell’s dual-layer recording and even higher recording density technology realized a large recording capacity of 50GB, twice the storage capacity of current single layer disc (23.3GB). In addition, by introducing new phase change recording material and recording layer structure which enabled to maintain uniformed thickness of middle recording layer, Maxell achieved to obtain wider recording power margin and rewriting durability with low error rate even after 1,000 times recording. Also highly accurate spin coating technology contributed to cover layer 0.1mm in thickness with smooth surface and outstanding uniformity in thickness, offers stable and reliable performance in recording and playback. |
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| 2. |
Highly durable hard coating technology |
| |
For high density recording, dust and scratches can cause serious problems on accurate recording and playback. Maxell’s highly durable hard coating technology solved these problems by providing static electricity discharge effect and avoiding dust, and protect discs from scratches on recording surface. |
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|
| 3. |
Sealed cartridge to guard disc |
| |
Highly precise molding technology makes it possible to provide extremely durable, dustproof sealed cartridge, together with hard coating technology, protect saved data from dust and scratches. |
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|
| 4. |
Better visibility of disc cartridge |
| |
By introducing red cartridge, it makes easier to identify dual layer cartridge from single layer (blue cartridge). Also semi-transparent hard case and index card corresponding to the cartridge colors are introduced for better and easier handling on filming and editing scenes. |
・Main Specifications (Comparison with single layer disc “PD-23SL”)
| Model |
PD-23SL |
PD-50DL (New Product) |
| Recording layer |
single layer |
dual layer |
| Recording capacity |
23.3GB |
50GB |
| Data transfer rate |
Playback |
max 172Mbps*2 |
max 126Mbps |
| max 126Mbps |
| Recording |
max 172Mbps2 |
max 86Mbps |
| max 86Mbps |
| Laser wavelength |
405nm(blue-violet laser) |
| Disc diameter |
120mm |
| Disc thickness |
1.2mm |
| Cartridge size |
128.6mm×130.6mm×9.1mm |
| Recording method |
phase change recording |
| Track pitch |
0.32µm |
| Rewrite cycle |
more than 1,000 times |
| Playback cycle |
more than 1,000,000 times |
| Estimated shelf and archival life |
more than 50 years |
| Weight |
Cartridge |
88g |
| With hard case |
190g |
| With inner box |
1,020g |
| With outer carton |
11kg |
| Packing unit |
5 pcs. / inner box
50 pcs. / outer carton |
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