Tsinghua Tongfang BD Blu-ray Archive Disc(25G)
(Tsinghua Tongfang Archives CD)
Application field
Tsinghua TongfangDVD archive discCan satisfy archives, government and enterprises,Judicial, radio and television, military industry, aviation, transportation, electric power, communications, energy, finance, medical imaging and other industriesconductdataApplication requirements such as storage, backup, delivery, and daily archiving.
*Safety Durable
*Choice of Safe Storage of Important Electronic Documents
Compared with magnetic disks, magnetic tapes, and flash memory record carriers, the use of optical disks to record and store archived data has many advantages in terms of safety, durability, energy saving, environmental protection, and cost maintenance. Archives industry standardDA/T38-2008It is clearly stipulated that when electronic files are archived by optical discs, archive-level optical discs shall be used. Tsinghua Tongfang’s archive-level optical discs are recordable optical discs with durability that meets specific requirements. Various technologies are superior to industry standards, and the archive life is longer than50Years, the physical storage life is greater than100Years, it is an ideal choice for long-term preservation of electronic files and record carriers.
Product performance
In order to maintain the good quality and batch consistency of archive-level discs,DA/T38-2008standard requirement:
◆ The brand or supplier of file-level optical disc raw materials shall not be changed at will;
◆ The production process of archive-level optical discs must be stable, and process parameters must not be changed at will;
◆ Polycarbonate produced from archival optical discs(PC)Plastics shall not use recycled materials;
◆ The use of ink, protective glue and adhesive glue must pass the weathering test of the disc;
◆ After the injection molding machine is started or after the process parameters are adjusted, the front50The disc base is not used for file-level discs;
◆ The terminal on-line detection needs to have a hierarchical screening function, so that the production line can distinguish archive-level optical discs from other-level optical discs;
◆ The printing pattern on the label surface of the file-level CD must have a special logo pattern;
◆ Characters or barcodes such as the date of manufacture and batch must be marked on the file-level CD;
◆ File-level optical discs need to undergo strict quality inspection before the product leaves the factory.
Manufacturer Profile
Beijing Tongfang Optical Disk Co., Ltd. was established in 1998. The main sponsors are Tsinghua University, Tongfang Co., Ltd., China Audiovisual Association, Beijing Institute of Graphic Communication, and Beijing Film Academy. Since 1999Since 1999, Beijing Tongfang Optical Disk Co., Ltd. has carried out the promotion and application of high-quality CD-recording products in China, and has built its own brand of optical disks in China.“Tsinghua Tongfang”, To promote the rapid development of China''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s optical disc industry.Tsinghua Tongfang''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s optical disc products are designed and produced from the user''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s standpoint, and they have introduced a system to classify optical disc products according to quality, and mark the storage life of different grades on the product packaging. The archival business is related to the civilization and inheritance of the Chinese nation. As a national enterprise that shoulders social responsibility, Tsinghua Tongfang adheres to the century-old spirit of Tsinghua University’s rigorous and pragmatic, screening materials, optimizing processes, abiding by standards, and strict control, and launching a product that allows the society to rest assured and users are satisfied. Archive-level products escort China''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s archive storage business.
Archives industry certification
Tsinghua Tongfang''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s archive-grade CD-ROM is specially designed and produced to ensure the long-term preservation of various important electronic documents, including archives. Various technical indicators comply with DA/T38-2008 "Technical Requirements and Application Specifications for Electronic Document Filing Optical Discs", jointly established by the Archives Science and Technology Institute of the Archives Bureau and the Optical Disc Engineering Research Center“Joint Laboratory of Disc Protection Technology”Certified and tested CD products. Tsinghua Tongfang''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s archive-grade CDs are independently designed and produced by domestic enterprises, and are tested and certified by domestic archives industry institutions. Both production and certification are traceable, and it is a national product that can truly assume social responsibility.
Strictly implement archives industry standards
Archival-grade optical discs refer to professionally burned optical discs used for long-term archiving and preservation of important electronic documents, with durability that meets specific requirements, various technical indicators superior to industrial standards, batch consistency, and archiving life of more than 20 years. As a special industry disc that is different from ordinary optical discs, the DA/T38-2008 standard has strict requirements on the batch consistency of archive-level optical discs.
The difference between archive CD and other CD products
Focus on burning data“ Preservability” instead of“Easy to record” Therefore, its quality requirements are more stringent than ordinary CDs;
The product has a batch inspection report issued by a third-party archive industry standard agency;
The application of archival discs is a continuous inspection process that is equal to the life of the data in it.
Product specifications
Specification | BD-R |
capacity | 25G |
level | File level |
Product packaging | Single-chip boxed |
Executive standard | DA/T38-2008 |
Shelf life | Archive life of more than 20 years |
Quality inspection | Attached with CD-ROM protection technology joint experiment test report |
Product Supervisor | Joint Laboratory of Disc Protection Technology |