Tip 4/5: Cleaning and Security
Caution with blanks
Arno Weger from kdg mediascope white Advice: "First of all, you should visually inspect the information surface, then clean the dirt with warm soaps and gently wipe it with a soft cloth, other possibilities do not exist. This is why Weger's practical advice is: "If possible, always make a security scan."
Tip 6: Labeling of blanks
Sandra Fritzsch recommends: "A dirty CD or DVD can be carefully cleaned in order to be readable again, but with a little pressure and above all, never wipe it in the circular direction, but radially from the inside out!" >
Tip 7: The Right Storage
In contrast to Kollegeweger, the MPO specialist considers the use of commercially available liquid cleaners as useful, but at the same time restricts them: "Never use gasoline, paint thinners, antistatic or conventional LP cleaning agents."
Conclusion
Ergo: If you follow the advice of the two experts, you should have a lot of fun with your purchased movies on DVD and Blu-ray Disc.
But what about the so-called "leermedia", ie (re) writable blanks, on which one as a user even movies, music or other data burns? Are there significant differences to the recorded disc? "Yes, they exist," says Sandra Fritzsch. "The layer, which allows the data to be stored later, is, as it were, also sensitive to light, so to speak, so be careful when storing it.
MPO has, however, developed high-quality alternatives in the field of leech media, which, according to Fritzsch, have "a very good protection against harmful UV exposure: the black-colored CD-R and the CD-R Gold, which have a lower light sensitivity due to their layer composition" .
Please also note the following for the blanks: Labeling may only be carried out on the printed side by means of a felt tip pen. "Scratching writing tools such as pencils, ball-point pens or similar can lead to damage - adhesive labels lead to imbalance of the disc," emphasizes the Cologne expert.
Arno Weger, however, explains the technical differences between recorded and unplayed discs in detail: "In the case of recorded media, information is injection molded into the plastic, which means that the information level consists of pits in the plastic Of the laser and thus the two states zero and one.
In the case of CD-R / DVD-R, the reading of zero and one is not produced by recesses, but by the two dye polymer coatings, amorphous' and 'crystalline'. The dye-polymer layer is basically amorphous in the undefined slice. When firing, the laser changes the information units (pits) into a crystalline state.
The crystalline layer thus reflects the laser light while the amorphous layer absorbs the light. This results in the two states zero and one. Direct sun exposure and high temperature differences should therefore be avoided with CD-Rs / DVD-Rs.
To what extent there is a limited lifespan for the silverlings, the experts prefer to be silent. But whether 15, 20 or 30 years of durability - for every buyer and user: whoever loves his discs, he cares.
Only a carefree handling of DVDs or Blu-rays can lead to damage or errors during playback. The practice tips from the experts show that it is relatively easy to avoid anger.
No comments:
Post a Comment