Address: Bldg.A2-A3,No.11 Industrial Area,Yagang,Baiyun District,Guangzhou,China
Tel:86-020-86414989 61162250
Fax:86-020-61162251
Contact person:Ms.MARY
E-mail: mary-daisy@hotmail.com

How to distinguish good quality CD-Rs, DVD-Rs and DVD+Rs from bad
quality CD-Rs, DVD-Rs and DVD+Rs ?

There are 2 steps to distinguish good quality CD-Rs, DVD-Rs and DVD+Rs
from bad quality CD-Rs, DVD-Rs and DVD+Rs :

1. Ocular estimate: The surface and coat of good quality products
should be smooth, leveling and without any pinhole, impurity, nick and
spot.

2. Soft test: Soft test is very important for testing the quality of
discs. Eyes test only know the surface quality of CD-Rs, DVD-Rs,
DVD+Rs. Soft test can know the actual quality of CD-Rs, DVD-Rs and
DVD+Rs.

How to distinguish good quality CD Jewel cases from bad quality CD Jewel Cases?

There are 6 points we need to taken into consideration to distinguish
good quality CD cases:

1. The material. The cover of good quality CD jewel case is very
clear, it should be made of 100% new material. If you find little
black spot in the cover, or the cover is not so clear, it is not made
of 100% new material.

2. The surface of CD case cover. The surface of CD case cover should
be smooth and without corrugation. To reach this standard need high
technology. Daisy can provide this high quality CD case because 17
years production experience in this industrial.

3. The edge of good quality CD jewel case is smooth and without big
flash. To reach this standard also need highly technology. Daisy can
provide this high quality CD case because 17 years production
experience in this industrial.

4. The tray which assembled between the covers should be made of good
quality material, otherwise it will be broken easily or bending.

5.The Locking mechanism. We have to test the CD locking mechanism (the
core in the middle of the CD case which hold the disc), you put the CD
into it, shake it strongly, if the CD could not be shaken out of the
locking mechannism, it is good CD locking mechanism.

6. The weight of CD Case. The weight will affect the strong of CD
case. PS material is easier broken compare with PP material. If the
weight is too light, CD case will be not strong. Usually, the weight
of standard 10mm CD case is about 60g/pc, also we can produce 65g/pc,
70g/pc, 75g/pc and 80g/pc for standard CD case; the weight of 5.2mm CD
case is about 38g~40g/pc.

How to distinguish good quality DVD Cases from bad quality DVD cases?

There are 6 points we need to taken into consideration to distinguish
good quality DVD cases:

1.The material. About black DVD case, there is two kinds material to
make black DVD case, one use recycled material, the other use new
material combined with black pigment. If the DVD case is made of
recycled material, there would be some smell, the quality is bad if
the smell is strong because the material has been recycled many times.
And if the DVD cases is made of new material combined with black
pigment, there is no bad smell.

2. The Film outside of the DVD case. The film should be sealed tightly
and smoothly onto the DVD case, you can pull them with enough
strength, if it won't get out of the DVD case, the seal is good. The
film thickness of DVD case cannot be too thin.

3. The hinge between the covers, you can bend the two cover by
continuously open and close the DVD case. If the DVD case is made of
good quality material, the hinge will not be broken easily, if the DVD
case is made of bad quality material, the hinge will be broken after
you bend covers over 100 times.

4.The Locking mechanism(the core in the middle of the DVD case which
hold the disc). To test the DVD locking mechanism , you can put the
DVD into it, shake it strongly, if the DVD could not be shaken out of
the locking mechannism, it is good quality DVD locking mechanism.

5. The booklet holder, there is two booklet holders on one side of the
DVD case, you can push it to the border for several times, if the
holder is not broken after you bush it about 100 times or more, the
quality of DVD case booklet holder is good. If the DVD case is made of
bad material, it will be broken after you push it several times.

6. The weight of DVD Case . The weight will affect the thickness of
DVD case. If the thickness is too thin, DVD case will be broken easily
and the shape will be protruded or concaved. Usually, for made of PP
material, the weight of 14mm DVD case is about 68~70g/pc; the weight
of 9mm DVD case is about 63~65g/pc; the weight of 7mm DVD case is
about 58~60g/pc.

How to distinguish good quality CD sleeve from bad quality CD sleeve?

Good quality material and high technology will make good quality CD
sleeve. If the CD sleeve is smooth and without any impurity, the color
of CD sleeve is clear and beautiful and the intensity of CD sleeve is
strong, congratulation, they are good quality CD sleeve, both PP CD
sleeve and Paper CD sleeve.

How to distinguish good quality CD DJ Aluminum case from bad quality
CD DJ Aluminum case?

Good quality material and high technology will make good quality DJ
Aluminum case. One type of DJ Aluminum case is inserted PP CD sleeve.
If the surface of DJ Aluminum case is smooth and without any impurity,
CD Aluminum case is strong, the inside PP CD sleeve move smoothly, the
serial number of PP CD sleeve is right, they are good quality CD DJ
Aluminum case. Another type of DJ Aluminum CD case is inserted plastic
CD jewel case, please refer to CD jewel case test mothed.

 

How to distinguish good quality CD bag from bad quality CD bag?

Good quality material and high technology will make good quality CD
bag. If the surface of CD bag is smooth and without any impurity and
thrum, no bad smell when you open CD bag, the intensity of CD bag is
strong, the stitch is not too sparse, it is good quality CD bag.

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