The revival of physical music and retro culture has turned older records into historical collectibles with investment appeal. Within this field, Chinese-language CDs from the 1980s and 1990s are particularly sought after. Yet the same artist and album can show differences of dozens or hundreds of times in second-hand buyback prices between first pressings and reissues.
People often find boxes of older CDs when moving, emigrating or sorting relatives' possessions. How can you distinguish a valuable original from a later mass-produced reissue? The key is the disc's fingerprint: the IFPI matrix code。
As experienced Hong Kong record buyers, 9Box Music presents this detailed guide to reading CD matrix codes and physical features for accurate Chinese-language first-press identification, helping recognise historical and financial value instead of discarding records as waste paper.
1. What are IFPI or SID codes?
IFPI codes are technically known as Source Identification Codes, or SID codes. Developed jointly by IFPI and Philips under a December 1992 agreement, they were introduced worldwide from April 1994 as an anti-counterfeit and anti-piracy manufacturing standard.
Like an identification number, they trace mastering and replication to their source plants. Prerecorded discs undergo separate front-end **glass mastering and back-end plastic injection replication** stages, so SID codes have two types:
1. Mastering SID code
- Technical role: Written as optical information into the lead-in mirror band during laser-beam recording of the glass master. Entered at the front end as data, it is automatically carried onto subsequent stampers once programmed and cannot be removed or changed.
- Position: The inner lead-in mirror band, around a 17–18 mm radius, with larger lettering.
-
Format: Uppercase **IFPI followed by L** and three or four alphanumeric characters. Examples:
IFPI L601、IFPI L016。 - Identification role: Discs derived from the same glass master retain the same mastering SID regardless of their eventual pressing location.
2. Mould SID code
- Technical role: A code engraved into the injection mould is physically impressed into the cooling plastic during the back-end process.
- Position: The central uncoated clear hub / stacking ring, with smaller, raised lettering towards the reading side.
- Format: Uppercase IFPI or stylised lowercase ifpi followed by four or five characters; five-character codes began in January 2002.
-
Code security: The first two characters of a four-character code, or first three of a five-character code, identify a plant; remaining characters identify its moulds. To avoid confusion, I, O, S and Q are excluded. Examples:
IFPI 1C09、IFPI 0952。
| Technical factor | Mastering SID | Mould SID |
|---|---|---|
| Technical basis | Laser-recorded data | Physical mould impression |
| Standard format | IFPI L + three or four characters | IFPI + four or five characters, excluding I/O/S/Q |
| Lettering | At least 0.5 mm high, commonly 0.5–1.0 mm | At least 0.5 mm high, raised |
| Location | Inner mirror band / lead-in, around 17–18 mm radius | Clear stacking ring |
2. First-press identification: the 1994 dividing line
For Chinese-language CD first pressings, the first and most important dating rule uses April 1994, the global SID introduction as an absolute boundary:
1. Before April 1994: the no-code period
Early Chinese-language CDs made before the SID standard cannot have any IFPI code in either the mirror band or clear hub. This helps explain the strong values of older no-IFPI CDs.
Hong Kong and Taiwan then lacked high-precision production, so most early releases by Leslie Cheung, Anita Mui, Teresa Teng, Danny Chan, Beyond and Tsai Chin were contracted to advanced Japanese or European plants, including:
- Japanese Sanyo: Mainly 1986–1987 contract pressings; warm, full sound.
- Japanese Toshiba TO: Around 1987–1992; transparent sound and high collectibility.
- Japanese Sony: Mainly 1985–1988; small-ring early English-letter variants are valuable.
- Japanese Denon: Around 1986–1991; excellent resolution.
- West German PolyGram silver hub: Around 1988–1989; silver reflection in the hub or disc, favoured by audiophiles.
- Early Korean T113 / SKC silver hub: Around 1988–1994; a pronounced metallic appearance.
If an album originally appeared before 1994, for example in 1989, and neither ring has IFPI, it can be identified as an early first pressing with strong sound, scarcity and buyback premiums.
2. After April 1994: coded production and transition
-
Transition, April 1994–October 1995: Some smaller Asian plants updated equipment unevenly, producing discs with a new mastering
IFPI L***code but no mould code on older injection equipment. - Regulated adoption from October 1995: Mainland China introduced SID management requirements and compulsory dual codes.
- Taiwan's Optical Disk Act from 2001: Legislation passed in 2001 required manufacturers to obtain and impress SID codes before production.
💡 Specialist tip: Later reissues may retain original copyright wording on cases, booklets and discs, such as
℗ & © 1989. But an IFPI code in the clear hub means it is a later pressing manufactured after 1994。
3. Major Asian and overseas plant codes
Checking codes helps reconstruct manufacturing and establish editions or origin. The following is 9Box Music's reference:
📊 Major mastering and replication plants' SID codes
| Region / country | Replication / mastering plant | Mould SID range | Mastering SID range | History and identification |
|---|---|---|---|---|
| Hong Kong | Tai Po plant | IFPI 09xx |
Indicates a Hong Kong glass-mastering source | Handled most local first pressings and reissues of mid-to-late-1990s Cantonese CDs. |
| Taiwan | Ritek | IFPI 1Cxx |
Proprietary mastering system | Taiwan optical-disc pioneer; made its first CD in 1990 and joined IFPI in 1991. |
| Taiwan | Utech | Utech-specific mould codes | IFPI L601 - IFPI L610 |
Established through Ritek investment in 1999; manufactured many Mandarin originals for Sony, Warner and EMI after 2000. |
| Taiwan | Princo | IFPI 29xx |
Dedicated LBR system | A prominent early Taiwanese contractor. |
| Mainland China | Guangxi Dimei Technology | IFPI W400 - IFPI W403 |
Dedicated LBR system | An early southern-China prerecorded-disc line handling licensed imports and mainland releases. |
| Mainland China | Zhuhai Landi Optical Disc | IFPI U400 - IFPI U410 |
Dedicated LBR system | A joint-venture prerecorded-media manufacturer handling original and licensed releases. |
| Mainland China | Shanghai Xinsuo Music | IFPI X400 - IFPI X417 |
IFPI LC20 |
A leading Sony joint-venture plant with standardised mastering and mould-code management. |
| Mainland China | Guangzhou Yongtong Audio-Visual | IFPI N100 - IFPI N113 |
Dedicated LBR system | A major southern-China replicator handling many pop records. |
| Germany | WME (Warner Music Europe) |
IFPI 05xx or IFPI 06xx
|
IFPI L011 - IFPI L020 |
Based in Alsdorf; used for early European imports, including Warner artists' first pressings. |
| Japan | Toshiba-EMI | IFPI 28xx |
IFPI L151 - IFPI L160 |
Manufactured many Hong Kong and Taiwan first pressings in the 1980s–1990s; clear sound and high collectibility. |
| Japan | JVC | IFPI 40xx |
IFPI L231 - IFPI L250 |
A favoured early audiophile Chinese-CD plant with strong imaging. |
| Korea | SKC Limited | IFPI 98xx |
IFPI L581 - IFPI L590 |
Handled substantial Chinese-language production, including PolyGram artists, from the late 1980s to mid-1990s. |
4. Advanced checks: assembled copies and physical alteration
As early silver-hub CD buyback values rise, some sellers place cheap later discs in original first-press boxes or booklets.
Two advanced checks help expose these copies:
Check 1: logical consistency between mastering and mould codes
Authorised manufacturing normally shows consistency and ownership connections between mastering and replication.
-
Authorised example: A Warner Music Europe album has mastering code
IFPI L016, assigned to German WME laser equipment, and mould codeIFPI 054I, assigned to its Alsdorf plant, matching the group's production chain. -
Counterfeit / false-first-press example: A purported original European CD may have
IFPI L016in its mirror band, copied with the mastering data, but a mould code ofIFPI 08N5. TheIFPI 08xxrange belongs to Mexico's Azcapotzalco plant, while in these counterfeit casesIFPI 08N5often indicates unauthorised Southeast Asian replication. This geographical and industrial-ownership mismatch provides evidence of an unofficial counterfeit or pirate copy. - Chinese-language examples: Jolin Tsai's Sony-era 看我72變 (2003) and 城堡 (2004) had Taiwanese first pressings from standardised local plants such as Utech or Ritek. A supposed Taiwan original with local mastering but mould codes pointing to unauthorised mainland or other production suggests a later disc assembled with early packaging.
Check 2: unnatural melting or abrasion of codes
Some counterfeiters or dishonest sellers physically obscure revealing mould codes:
- Melting with a soldering iron: Heat melts the hub code into a blurred raised lump.
- Grinding the plastic white: Abrasion flattens and whitens the ring to remove mould markings.
⚠️ Specialist warning: A hub showing unnatural melting, grinding or whitening is highly suspicious and loses much of its purchase and collecting value.
5. Hong Kong CD buyback reference: 2026 edition
To help owners and collectors, 9Box Music combines local physical-shop transaction data into current second-hand CD buyback ranges, in Hong Kong dollars:
📊 Hong Kong CD reference offers (HKD)
| Medium / edition | Representative artists / features | Indicative buyback range (HKD) | Main price factors |
|---|---|---|---|
| 1980s Chinese-language first-press CDs | Early Leslie Cheung, Teresa Teng, Danny Chan, Beyond and Tsai Chin | From HK$100–30,000+ | Wide variation; Japanese Sanyo, Toshiba, Denon and early West German silver hubs are prized, with some very rare editions above HK$10,000. |
| Early silver-hub CD | Pre-1991 first batches by classic Hong Kong/Japanese artists | $200 - $2,000+ | Ordinary silver hubs around $200 - $600; classic artists' originals around $600 - $2,000; scarce limited first pressings up to $2,000 - $8,000+。 |
| Early-1990s Japanese CDs | Pre-1995 Japanese manufacture, no IFPI or early matrix | $80 - $800 | Ordinary Japanese originals around $80 - $300; out-of-print artists up to $300 - $800。 |
| Limited / numbered / special edition | Individually numbered runs, promos / sample copies, special certificates | $600 - $8,000+ | Small radio-promo runs were not mass commercial production and can carry substantial premiums. |
| Exceptional out-of-print collectibles | Classic-star rarities, audiophile original-master editions and glass CDs | From HK$5,000–20,000+ | Lost masters or tiny runs create demand; for example, Danny Chan's Toshiba 癡心眼內藏 is described as unreissuable through master damage. |
| Ordinary mid-to-late-1990s plastic-hub CDs | Regular Aaron Kwok, Leon Lai and Sammi Cheng editions | $10 - $100 (usually discounted bulk offers) | Clear or frosted hubs, large runs, clean surfaces and intact cases/booklets. |
(Note: Offers are indicative and adjusted for disc condition, lyrics, obi and case. Exceptional complete copies can receive premiums.)

6. Conclusion: do not discard your music collection as waste paper
SID codes mark both production history and value tiers in the used-record market.
Do your shelves, study or moving boxes contain valuable early no-code or silver-hub CDs?Do not discard them as rubbish or sell them cheaply by weight.
Choose 9Box Music to recognise the value of older recordings
- More than ten years of identification experience: Our experienced team checks matrix codes such as T113, TO and Sanyo, condition and extras individually rather than buying cheaply by weight or box, offering fair cash purchase prices。
-
Three steps to sell from home:
- Photograph and enquire: Photograph covers, back-cover tracks and the underside matrix and send the images.
- Free WhatsApp initial appraisal: Staff promptly identify editions and provide an initial range.
- Vehicle-assisted visit or shop handover: After approximate price agreement, arrange free home collection across all 18 Hong Kong districts. Following condition checks, receive immediate cash or FPS payment without delay or price suppression.
-
We particularly seek:
- 1980s and 1990s Chinese-language, English and Cantonese CDs by Leslie Cheung, Danny Chan, Beyond, Teresa Teng, Anita Mui and George Lam
- Vinyl, early cassettes, hi-fi equipment and artist memorabilia.

📞 Contact 9Box Music for a collection valuation
- Business name:9Box Music
- 24-hour free appraisal hotline (WhatsApp):(852) 6904 3974
- WeChat contact:YHT62586716
- Hung Hom physical shop, an established, honest business ready to help.
(We buy genuine vinyl, CDs and cassettes only, declining pirate or illegally copied products. Transactions are open and transparent; enquiries welcome.)


Mr Ho's Urgent Tuen Mun Emigration Sale: Appraising and Collecting 200 Records in 48 Hours
Vinyl Buyback in Mei Foo, Cheung Sha Wan and Lai Chi Kok: Clearing Industrial-Building Storage
PolyGram Gold Sets Found During Office Clearance: A Bulk Silver-Ring CD Buyback