- brand: Tsinghua Tongfang
- series: File-level Blu-ray Disc
- Burning disk capacity: 50GB
- Packing type: Boxed
- sort by color: Printable not printable
- diameter: 12cm
- slices: 1
- Sales form: Monolithic retail
- Reading and writing speed: 6X
- Burning disc type:
- Format: BD-R DL
Remarks: Tsinghua Tongfang DVD-R file-level recordable discs are available in printable and non-printable. Please select printable or non-printable discs when you buy them, or you can remark the following when you take them.For large quantities, you can issue 13% special invoices for value-added tax deduction,(VAT special ticket is 13% deductible value-added special ticket)
The only one in China that complies with the National ArchivesDA/T38-2008Archive industry standard.
The only one in China that complies with the National ArchivesDA/T38-2008Archive industry standard.
Tsinghua Tongfang BD Blu-ray Archive Disc(50G)
Tsinghua Tongfang Archives CD
*Safe and durable
*Guarantee for the safe storage of important electronic files
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. The archive industry standard DA/T38-2008 clearly stipulates that when electronic files are archived by optical discs, archive-grade optical discs should be used. Tsinghua Tongfang''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s archive-grade optical discs are recordable optical discs with durability that meet specific requirements. Various technologies are superior to industry standards. The archive life is greater than 50 years, and the physical storage life is greater than 100 years. It is an ideal choice for long-term storage of electronic files.
product description
In order to maintain the quality and batch consistency of archive-level optical discs, the DA/T38-2008 standard requires:
◆ The brand or supplier of file-level optical disc raw materials shall not be changed at will;
◆ The production process of file-level optical discs must be stable, and process parameters must not be changed at will;
◆ Polycarbonate produced from archive-level CDs(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 the process parameters are adjusted, the first 50 discs are not used for archive-level discs;
◆ The terminal on-line detection must 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;
◆ The production date, batch and other characters or bar codes must be marked on the file-level CD;
◆ File-level optical discs must 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 1999, Beijing Tongfang Optical Disc Co., Ltd. has taken the lead in the promotion and application of high-quality CD-recording products in China, and has created its own brand of optical discs 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 are the first to introduce a system to classify optical disc products according to quality, and are the first to 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 bears social responsibility, Tsinghua Tongfang adheres to the century-old spirit of Tsinghua University’s rigorous and pragmatic, selecting materials, optimizing technology, abiding by standards, and strict control. The archive-level products escort the 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. The technical indicators comply with DA/T38-2008 "Technical Requirements and Application Specifications for Electronic Document Archiving Optical Discs", which are currently jointly established by the Archives Science and Technology Institute of the National Archives Administration and the National Optical Disc Engineering Research Center“Joint Laboratory of Disc Protection Technology”Certified and tested CD products. Tsinghua Tongfang''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s archive-level 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. It is a preferred product for archive backup in the archives industry.
Strictly implement archives industry standards
Archival-grade optical discs refer to discs that have durability that meets specific requirements, various technical indicators are superior to industrial standards, have batch consistency, and have an archive life of more than 20 years; they are burned optical discs used for long-term archiving and preservation of important electronic documents. 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“Easily recordable”, So 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 parameter
Specification BD-R
capacity 50G
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
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