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录像磁带录制节目后,由于种种原因经常发生恶化,给节目保存带来严重的威胁,甚至我室于1979年录制的教学节目到目前仅五年时间已有部分退色,个别的还出现杂波(雪花瘢点)。关于录像磁带存储信息发生恶化原因,应从以下两方面进行分析与研究:一方面是录像带录制及保存过程引起的恶化;另一方面是录像带在使用过程中引起的恶化。
Videotape recording programs often deteriorate for various reasons, posing a serious threat to the preservation of programs. Even the teaching programs recorded in 1979 by our library have been partially faded in only five years and some have also shown clutter Snow scar points). On the video tape storage information deterioration causes should be analyzed and studied from the following two aspects: one is the tape recording and preservation process caused by deterioration; the other is the deterioration of the tape caused by the use of the process.