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[转帖]HD-COPY易被忽视的13种用法
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HD-COPY易被忽视的13种用法
作者：陈海鹏
HD-COPY作为一种快速、高效、简便的拷贝软件，拥有众有使用者。各种报刊杂志有关HD-COPY的介绍更是倍受欢迎。但是，几乎所有这些文章都只是对HD-COPY的常用功能、选项和开关等进行介绍，对其他一些不起眼的内容往往一带而过，而这些内容往往是电脑爱好者所关心和困惑的。下面，笔者就这些易被忽视的的内容解答如下（以HD-COPY2.X版本为例，多数问题也适用于1.7X版）
1、关于获得帮助
在DOS下，用户可以通过加参数/？（即HD-COPY/？）来获得启动命令参数（HD-COPY有许多启动参数）的用法，在HD-COPY界面中，可以按F1随进获得相关的帮助信息。
2、关于交换介质
如果计算机系统具有EMS或XMS，HD-COPY将优先将其作为缓冲区，以加快读盘和写盘的速度。如果系统EMS或XMS很小或根本没有，那么HD-COPY将试图在基本内存中建立虚拟盘（无需DOS建立虚拟盘），如果基本内存剩余空间不够，HD-COPY将在C盘根目录下建立临时交换文件，因此，如果系统的内存较小，最好有2MB的剩余硬盘空间。
3、关于修复功能
在写（Write)盘或格式化（Format）盘时，如果将校验（Verift）开关打开（+），则当遇到目标盘上有坏道且坏道区不超过两个时，HD-COPY将自动启用磁盘上的备用扇区加以扩充（Extend），以保证复制后或格式化后的软盘或容量和质量都保持不变，这是一项连著名的磁盘修复软件NDD、DISKFIX等都没有的功能。如果坏扇区超过两个，HD-COPY会将其标识为坏道。
4、关于映象文件
在生成磁盘映象文件时，系统默认状态为压缩。如果用户不希望HD-COPY对映象文件进行压缩，可以在启动HD-COPY时用参数/I来加以禁止。对其压缩与否，并不影响HD-COPY读出文件，因为它可以自动识别映象文件的状态。
5、关于软盘控容
HD-COPY可以80至84五个磁道数中任何一个，再配以不同扇区数，从而格式化出360KB至1.764MB共35种不同容量的磁盘（这在同类软件中是最多的）。但是，目前的许多软驱最多只能支持82个磁道（即使有FDREAD、800IIG一类的非标准格式支持软件也不行，如果强行使用具有83和84磁道的软盘，将会造成读写错误，甚至会损坏软盘。
6、关于设置卷标
格式化软盘后，如果用户未输入卷标，那么HD-COPY将把当前系统时间和日期经过科学换算后赋予软盘，从而使每张格式化后的软盘卷标均不相同。
7、关于密码保护
如果打开此开（Password protect:+），那么格式化或拷贝出来的磁盘将无法在DOS下正常使用，唯一的办法是在HD-COPY中输入正确的口令后，将加密盘读出，再将口令开关关闭，最后写入软盘，此时软盘便可以正常使用了。
8、关于FAT选择
如果将此开关（FAT Selection）打开（+），那么HD-COPY在对软盘进行读写时，将根据FAT区的文件分配情况，只对有数据的扇区读写，而没有数据的扇区则跳过，从而大大提高了拷贝的速度。
9、关于磁头的定位
如果将此开关（Head Settle）打开（+），那么磁头在每次改变磁道时，都将有一个几毫秒的延迟，那是因为旧式驱动器的磁头在定位一个新磁道时，需要一段很短的时间，而目前通用的软驱则改进了这一性能，所以此开关最好关闭（HD-COPY之所以要保留此功能，就是要考虑一些老式机器的用户）
10、关于冗余模式
此开关（Verbose mode）如设为开（+），则所有的提示和警告信息都将显示在信息提示区；如果设为关闭，那么只有少量的、重要的提示信息。
11、关于内存统计
Memory statistics将显示出HD-COPY所使用的缓冲区中的占用情况，其中X代表扩展内存，E代表扩充内存，R代表虚拟内存，H代表硬盘文件。
12、关于磁头清洗
Use cleaning disk功能将开启软驱磁头电动机，使磁头在清洗盘表面移动25秒。应当注意的是，在清洗完磁头后，一定要将清洗盘取出，稍候再使用磁盘，以使磁头上的清洗剂完全挥发掉。
13、关于清除病毒
Eliminate virus将以新的引导区扇区重写软盘，从而清除掉可能隐藏于软盘中的引导型病毒。
### 13 Little-Known Uses of HD-COPY
Author: Chen Haipeng
As a fast, efficient, and simple copying software, HD-COPY has many users. Introductions about HD-COPY in various newspapers and magazines are very popular. However, almost all these articles only introduce the common functions, options, and switches of HD-COPY, and often pass over other insignificant contents in a perfunctory way, while these contents are often what computer enthusiasts care about and are puzzled by. Below, the author will answer these little-known contents as follows (taking HD-COPY version 2.X as an example, most problems are also applicable to version 1.7X)
1. About Getting Help
Under DOS, users can get the usage of startup command parameters (HD-COPY has many startup parameters) by adding the parameter /? (i.e., HD-COPY /?)., and in the HD-COPY interface, you can press F1 to get relevant help information at any time.
2. About Exchanging Media
If the computer system has EMS or XMS, HD-COPY will give priority to using them as buffers to speed up the disk reading and writing speed. If the system's EMS or XMS is very small or there is none at all, then HD-COPY will try to establish a virtual disk in the basic memory (no need for DOS to establish a virtual disk). If the remaining space in the basic memory is not enough, HD-COPY will establish a temporary exchange file in the root directory of drive C. Therefore, if the system's memory is small, it is best to have 2MB of remaining hard disk space.
3. About Repair Function
When writing (Write) to a disk or formatting (Format) a disk, if the verification (Verift) switch is turned on (+), then when a bad track is encountered on the target disk and the number of bad tracks does not exceed two, HD-COPY will automatically use the spare sectors on the disk for expansion (Extend) to ensure that the capacity and quality of the copied or formatted floppy disk remain unchanged. This is a function that even famous disk repair software such as NDD, DISKFIX, etc., do not have. If the bad sectors exceed two, HD-COPY will mark them as bad tracks.
4. About Image File
When generating a disk image file, the system default state is compression. If the user does not want HD-COPY to compress the image file, they can use the parameter /I to prohibit it when starting HD-COPY. Whether it is compressed or not does not affect HD-COPY reading the file, because it can automatically identify the state of the image file.
5. About Floppy Disk Capacity Control
HD-COPY can be at any one of the five track numbers from 80 to 84, and with different numbers of sectors, thus formatting disks with different capacities from 360KB to 1.764MB, a total of 35 different capacities (this is the most among similar software). However, currently, most floppy drives can only support 82 tracks at most (even with non-standard format support software such as FDREAD, 800IIG, etc., if a floppy disk with 83 and 84 tracks is forcibly used, it will cause reading and writing errors, and even damage the floppy disk.
6. About Setting Volume Label
After formatting a floppy disk, if the user does not enter a volume label, then HD-COPY will assign the current system time and date to the floppy disk after scientific conversion, thus making the volume label of each formatted floppy disk different.
7. About Password Protection
If this switch (Password protect: +) is turned on, then the formatted or copied disk will not be able to be used normally under DOS. The only way is to enter the correct password in HD-COPY to read the encrypted disk, then turn off the password switch, and finally write to the floppy disk, and then the floppy disk can be used normally.
8. About FAT Selection
If this switch (FAT Selection) is turned on (+), then when HD-COPY reads and writes to a floppy disk, it will read and write only the sectors with data according to the file allocation in the FAT area, and skip the sectors without data, thus greatly improving the copying speed.
9. About Head Positioning
If this switch (Head Settle) is turned on (+), then there will be a delay of a few milliseconds each time the head changes tracks, because the head of the old drive needs a short time to position a new track, while the current common floppy drive has improved this performance, so this switch is best turned off (the reason why HD-COPY retains this function is to consider the users of some old machines)
10. About Redundancy Mode
If this switch (Verbose mode) is set to on (+), then all prompts and warning messages will be displayed in the information prompt area; if set to off, then only a small number of important prompt messages.
11. About Memory Statistics
Memory statistics will show the occupation situation in the buffer used by HD-COPY, where X represents extended memory, E represents expanded memory, R represents virtual memory, and H represents the hard disk file.
12. About Head Cleaning
The Use cleaning disk function will turn on the floppy drive head motor, so that the head moves on the cleaning disk surface for 25 seconds. It should be noted that after cleaning the head, be sure to take out the cleaning disk and wait for a while before using the disk again to make the cleaning agent on the head completely evaporate.
13. About Eliminating Virus
Eliminate virus will rewrite the boot sector of the floppy disk with a new one, thus eliminating the boot-type virus that may be hidden in the floppy disk.
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